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author | whitespace / reindent <invalid@invalid.invalid> | 2017-07-17 14:03:14 +0200 |
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committer | whitespace / reindent <invalid@invalid.invalid> | 2017-07-17 14:04:07 +0200 |
commit | d62a17aedeb0eebdba98238874bb13d62c48dbf9 (patch) | |
tree | 3b319b1d61c8b85b4d1f06adf8b844bb8a9b5107 /lib/thread.c | |
parent | *: add indent control files (diff) | |
download | frr-d62a17aedeb0eebdba98238874bb13d62c48dbf9.tar.xz frr-d62a17aedeb0eebdba98238874bb13d62c48dbf9.zip |
*: reindentreindent-master-after
indent.py `git ls-files | pcregrep '\.[ch]$' | pcregrep -v '^(ldpd|babeld|nhrpd)/'`
Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
Diffstat (limited to 'lib/thread.c')
-rw-r--r-- | lib/thread.c | 2319 |
1 files changed, 1144 insertions, 1175 deletions
diff --git a/lib/thread.c b/lib/thread.c index 2c87c099d..5db470ef4 100644 --- a/lib/thread.c +++ b/lib/thread.c @@ -32,20 +32,20 @@ #include "sigevent.h" #include "network.h" -DEFINE_MTYPE_STATIC(LIB, THREAD, "Thread") +DEFINE_MTYPE_STATIC(LIB, THREAD, "Thread") DEFINE_MTYPE_STATIC(LIB, THREAD_MASTER, "Thread master") -DEFINE_MTYPE_STATIC(LIB, THREAD_STATS, "Thread stats") +DEFINE_MTYPE_STATIC(LIB, THREAD_STATS, "Thread stats") #if defined(__APPLE__) #include <mach/mach.h> #include <mach/mach_time.h> #endif -#define AWAKEN(m) \ - do { \ - static unsigned char wakebyte = 0x01; \ - write (m->io_pipe[1], &wakebyte, 1); \ - } while (0); +#define AWAKEN(m) \ + do { \ + static unsigned char wakebyte = 0x01; \ + write(m->io_pipe[1], &wakebyte, 1); \ + } while (0); /* control variable for initializer */ pthread_once_t init_once = PTHREAD_ONCE_INIT; @@ -56,204 +56,198 @@ static struct list *masters; /* CLI start ---------------------------------------------------------------- */ -static unsigned int -cpu_record_hash_key (struct cpu_thread_history *a) +static unsigned int cpu_record_hash_key(struct cpu_thread_history *a) { - return (uintptr_t) a->func; + return (uintptr_t)a->func; } -static int -cpu_record_hash_cmp (const struct cpu_thread_history *a, - const struct cpu_thread_history *b) +static int cpu_record_hash_cmp(const struct cpu_thread_history *a, + const struct cpu_thread_history *b) { - return a->func == b->func; + return a->func == b->func; } -static void * -cpu_record_hash_alloc (struct cpu_thread_history *a) +static void *cpu_record_hash_alloc(struct cpu_thread_history *a) { - struct cpu_thread_history *new; - new = XCALLOC (MTYPE_THREAD_STATS, sizeof (struct cpu_thread_history)); - new->func = a->func; - new->funcname = a->funcname; - return new; + struct cpu_thread_history *new; + new = XCALLOC(MTYPE_THREAD_STATS, sizeof(struct cpu_thread_history)); + new->func = a->func; + new->funcname = a->funcname; + return new; } -static void -cpu_record_hash_free (void *a) +static void cpu_record_hash_free(void *a) { - struct cpu_thread_history *hist = a; - - XFREE (MTYPE_THREAD_STATS, hist); + struct cpu_thread_history *hist = a; + + XFREE(MTYPE_THREAD_STATS, hist); } -static void -vty_out_cpu_thread_history(struct vty* vty, - struct cpu_thread_history *a) +static void vty_out_cpu_thread_history(struct vty *vty, + struct cpu_thread_history *a) { - vty_out(vty, "%5d %10ld.%03ld %9d %8ld %9ld %8ld %9ld", - a->total_active, a->cpu.total/1000, a->cpu.total%1000, a->total_calls, - a->cpu.total/a->total_calls, a->cpu.max, - a->real.total/a->total_calls, a->real.max); - vty_out (vty, " %c%c%c%c%c %s\n", - a->types & (1 << THREAD_READ) ? 'R':' ', - a->types & (1 << THREAD_WRITE) ? 'W':' ', - a->types & (1 << THREAD_TIMER) ? 'T':' ', - a->types & (1 << THREAD_EVENT) ? 'E':' ', - a->types & (1 << THREAD_EXECUTE) ? 'X':' ', - a->funcname); + vty_out(vty, "%5d %10ld.%03ld %9d %8ld %9ld %8ld %9ld", a->total_active, + a->cpu.total / 1000, a->cpu.total % 1000, a->total_calls, + a->cpu.total / a->total_calls, a->cpu.max, + a->real.total / a->total_calls, a->real.max); + vty_out(vty, " %c%c%c%c%c %s\n", + a->types & (1 << THREAD_READ) ? 'R' : ' ', + a->types & (1 << THREAD_WRITE) ? 'W' : ' ', + a->types & (1 << THREAD_TIMER) ? 'T' : ' ', + a->types & (1 << THREAD_EVENT) ? 'E' : ' ', + a->types & (1 << THREAD_EXECUTE) ? 'X' : ' ', a->funcname); } -static void -cpu_record_hash_print(struct hash_backet *bucket, void *args[]) +static void cpu_record_hash_print(struct hash_backet *bucket, void *args[]) { - struct cpu_thread_history *totals = args[0]; - struct vty *vty = args[1]; - thread_type *filter = args[2]; - - struct cpu_thread_history *a = bucket->data; - - if ( !(a->types & *filter) ) - return; - vty_out_cpu_thread_history(vty,a); - totals->total_active += a->total_active; - totals->total_calls += a->total_calls; - totals->real.total += a->real.total; - if (totals->real.max < a->real.max) - totals->real.max = a->real.max; - totals->cpu.total += a->cpu.total; - if (totals->cpu.max < a->cpu.max) - totals->cpu.max = a->cpu.max; + struct cpu_thread_history *totals = args[0]; + struct vty *vty = args[1]; + thread_type *filter = args[2]; + + struct cpu_thread_history *a = bucket->data; + + if (!(a->types & *filter)) + return; + vty_out_cpu_thread_history(vty, a); + totals->total_active += a->total_active; + totals->total_calls += a->total_calls; + totals->real.total += a->real.total; + if (totals->real.max < a->real.max) + totals->real.max = a->real.max; + totals->cpu.total += a->cpu.total; + if (totals->cpu.max < a->cpu.max) + totals->cpu.max = a->cpu.max; } -static void -cpu_record_print(struct vty *vty, thread_type filter) +static void cpu_record_print(struct vty *vty, thread_type filter) { - struct cpu_thread_history tmp; - void *args[3] = {&tmp, vty, &filter}; - struct thread_master *m; - struct listnode *ln; - - memset(&tmp, 0, sizeof tmp); - tmp.funcname = "TOTAL"; - tmp.types = filter; - - pthread_mutex_lock (&masters_mtx); - { - for (ALL_LIST_ELEMENTS_RO (masters, ln, m)) { - const char *name = m->name ? m->name : "main"; - - char underline[strlen(name) + 1]; - memset (underline, '-', sizeof (underline)); - underline[sizeof(underline)] = '\0'; - - vty_out (vty, "\n"); - vty_out(vty, "Showing statistics for pthread %s\n", name); - vty_out(vty, "-------------------------------%s\n", underline); - vty_out(vty, "%21s %18s %18s\n", "", "CPU (user+system):", "Real (wall-clock):"); - vty_out(vty, "Active Runtime(ms) Invoked Avg uSec Max uSecs"); - vty_out(vty, " Avg uSec Max uSecs"); - vty_out(vty, " Type Thread\n"); - - if (m->cpu_record->count) - hash_iterate(m->cpu_record, - (void (*)(struct hash_backet *, void *)) - cpu_record_hash_print, - args); - else - vty_out(vty, "No data to display yet.\n"); - - vty_out(vty, "\n"); - } - } - pthread_mutex_unlock (&masters_mtx); - - vty_out(vty, "\n"); - vty_out(vty, "Total thread statistics\n"); - vty_out(vty, "-------------------------\n"); - vty_out(vty, "%21s %18s %18s\n", "", "CPU (user+system):", "Real (wall-clock):"); - vty_out(vty, "Active Runtime(ms) Invoked Avg uSec Max uSecs"); - vty_out(vty, " Avg uSec Max uSecs"); - vty_out(vty, " Type Thread\n"); - - if (tmp.total_calls > 0) - vty_out_cpu_thread_history(vty, &tmp); + struct cpu_thread_history tmp; + void *args[3] = {&tmp, vty, &filter}; + struct thread_master *m; + struct listnode *ln; + + memset(&tmp, 0, sizeof tmp); + tmp.funcname = "TOTAL"; + tmp.types = filter; + + pthread_mutex_lock(&masters_mtx); + { + for (ALL_LIST_ELEMENTS_RO(masters, ln, m)) { + const char *name = m->name ? m->name : "main"; + + char underline[strlen(name) + 1]; + memset(underline, '-', sizeof(underline)); + underline[sizeof(underline)] = '\0'; + + vty_out(vty, "\n"); + vty_out(vty, "Showing statistics for pthread %s\n", + name); + vty_out(vty, "-------------------------------%s\n", + underline); + vty_out(vty, "%21s %18s %18s\n", "", + "CPU (user+system):", "Real (wall-clock):"); + vty_out(vty, + "Active Runtime(ms) Invoked Avg uSec Max uSecs"); + vty_out(vty, " Avg uSec Max uSecs"); + vty_out(vty, " Type Thread\n"); + + if (m->cpu_record->count) + hash_iterate( + m->cpu_record, + (void (*)(struct hash_backet *, + void *))cpu_record_hash_print, + args); + else + vty_out(vty, "No data to display yet.\n"); + + vty_out(vty, "\n"); + } + } + pthread_mutex_unlock(&masters_mtx); + + vty_out(vty, "\n"); + vty_out(vty, "Total thread statistics\n"); + vty_out(vty, "-------------------------\n"); + vty_out(vty, "%21s %18s %18s\n", "", + "CPU (user+system):", "Real (wall-clock):"); + vty_out(vty, "Active Runtime(ms) Invoked Avg uSec Max uSecs"); + vty_out(vty, " Avg uSec Max uSecs"); + vty_out(vty, " Type Thread\n"); + + if (tmp.total_calls > 0) + vty_out_cpu_thread_history(vty, &tmp); } -static void -cpu_record_hash_clear (struct hash_backet *bucket, void *args[]) +static void cpu_record_hash_clear(struct hash_backet *bucket, void *args[]) { - thread_type *filter = args[0]; - struct hash *cpu_record = args[1]; + thread_type *filter = args[0]; + struct hash *cpu_record = args[1]; + + struct cpu_thread_history *a = bucket->data; - struct cpu_thread_history *a = bucket->data; + if (!(a->types & *filter)) + return; - if ( !(a->types & *filter) ) - return; - - hash_release (cpu_record, bucket->data); + hash_release(cpu_record, bucket->data); } -static void -cpu_record_clear (thread_type filter) +static void cpu_record_clear(thread_type filter) { - thread_type *tmp = &filter; - struct thread_master *m; - struct listnode *ln; - - pthread_mutex_lock (&masters_mtx); - { - for (ALL_LIST_ELEMENTS_RO (masters, ln, m)) { - pthread_mutex_lock (&m->mtx); - { - void *args[2] = { tmp, m->cpu_record }; - hash_iterate (m->cpu_record, - (void (*) (struct hash_backet*,void*)) - cpu_record_hash_clear, - args); - } - pthread_mutex_unlock (&m->mtx); - } - } - pthread_mutex_unlock (&masters_mtx); + thread_type *tmp = &filter; + struct thread_master *m; + struct listnode *ln; + + pthread_mutex_lock(&masters_mtx); + { + for (ALL_LIST_ELEMENTS_RO(masters, ln, m)) { + pthread_mutex_lock(&m->mtx); + { + void *args[2] = {tmp, m->cpu_record}; + hash_iterate( + m->cpu_record, + (void (*)(struct hash_backet *, + void *))cpu_record_hash_clear, + args); + } + pthread_mutex_unlock(&m->mtx); + } + } + pthread_mutex_unlock(&masters_mtx); } -static thread_type -parse_filter (const char *filterstr) +static thread_type parse_filter(const char *filterstr) { - int i = 0; - int filter = 0; - - while (filterstr[i] != '\0') - { - switch (filterstr[i]) - { - case 'r': - case 'R': - filter |= (1 << THREAD_READ); - break; - case 'w': - case 'W': - filter |= (1 << THREAD_WRITE); - break; - case 't': - case 'T': - filter |= (1 << THREAD_TIMER); - break; - case 'e': - case 'E': - filter |= (1 << THREAD_EVENT); - break; - case 'x': - case 'X': - filter |= (1 << THREAD_EXECUTE); - break; - default: - break; - } - ++i; - } - return filter; + int i = 0; + int filter = 0; + + while (filterstr[i] != '\0') { + switch (filterstr[i]) { + case 'r': + case 'R': + filter |= (1 << THREAD_READ); + break; + case 'w': + case 'W': + filter |= (1 << THREAD_WRITE); + break; + case 't': + case 'T': + filter |= (1 << THREAD_TIMER); + break; + case 'e': + case 'E': + filter |= (1 << THREAD_EVENT); + break; + case 'x': + case 'X': + filter |= (1 << THREAD_EXECUTE); + break; + default: + break; + } + ++i; + } + return filter; } DEFUN (show_thread_cpu, @@ -264,20 +258,22 @@ DEFUN (show_thread_cpu, "Thread CPU usage\n" "Display filter (rwtexb)\n") { - thread_type filter = (thread_type) -1U; - int idx = 0; - - if (argv_find (argv, argc, "FILTER", &idx)) { - filter = parse_filter (argv[idx]->arg); - if (!filter) { - vty_out(vty, "Invalid filter \"%s\" specified; must contain at least" - "one of 'RWTEXB'\n", argv[idx]->arg); - return CMD_WARNING; - } - } - - cpu_record_print(vty, filter); - return CMD_SUCCESS; + thread_type filter = (thread_type)-1U; + int idx = 0; + + if (argv_find(argv, argc, "FILTER", &idx)) { + filter = parse_filter(argv[idx]->arg); + if (!filter) { + vty_out(vty, + "Invalid filter \"%s\" specified; must contain at least" + "one of 'RWTEXB'\n", + argv[idx]->arg); + return CMD_WARNING; + } + } + + cpu_record_print(vty, filter); + return CMD_SUCCESS; } DEFUN (clear_thread_cpu, @@ -288,253 +284,241 @@ DEFUN (clear_thread_cpu, "Thread CPU usage\n" "Display filter (rwtexb)\n") { - thread_type filter = (thread_type) -1U; - int idx = 0; - - if (argv_find (argv, argc, "FILTER", &idx)) { - filter = parse_filter (argv[idx]->arg); - if (!filter) { - vty_out(vty, "Invalid filter \"%s\" specified; must contain at least" - "one of 'RWTEXB'\n", argv[idx]->arg); - return CMD_WARNING; - } - } - - cpu_record_clear (filter); - return CMD_SUCCESS; + thread_type filter = (thread_type)-1U; + int idx = 0; + + if (argv_find(argv, argc, "FILTER", &idx)) { + filter = parse_filter(argv[idx]->arg); + if (!filter) { + vty_out(vty, + "Invalid filter \"%s\" specified; must contain at least" + "one of 'RWTEXB'\n", + argv[idx]->arg); + return CMD_WARNING; + } + } + + cpu_record_clear(filter); + return CMD_SUCCESS; } -void -thread_cmd_init (void) +void thread_cmd_init(void) { - install_element (VIEW_NODE, &show_thread_cpu_cmd); - install_element (ENABLE_NODE, &clear_thread_cpu_cmd); + install_element(VIEW_NODE, &show_thread_cpu_cmd); + install_element(ENABLE_NODE, &clear_thread_cpu_cmd); } /* CLI end ------------------------------------------------------------------ */ -static int -thread_timer_cmp(void *a, void *b) +static int thread_timer_cmp(void *a, void *b) { - struct thread *thread_a = a; - struct thread *thread_b = b; - - if (timercmp (&thread_a->u.sands, &thread_b->u.sands, <)) - return -1; - if (timercmp (&thread_a->u.sands, &thread_b->u.sands, >)) - return 1; - return 0; + struct thread *thread_a = a; + struct thread *thread_b = b; + + if (timercmp(&thread_a->u.sands, &thread_b->u.sands, <)) + return -1; + if (timercmp(&thread_a->u.sands, &thread_b->u.sands, >)) + return 1; + return 0; } -static void -thread_timer_update(void *node, int actual_position) +static void thread_timer_update(void *node, int actual_position) { - struct thread *thread = node; + struct thread *thread = node; - thread->index = actual_position; + thread->index = actual_position; } -static void -cancelreq_del (void *cr) +static void cancelreq_del(void *cr) { - XFREE (MTYPE_TMP, cr); + XFREE(MTYPE_TMP, cr); } /* initializer, only ever called once */ -static void initializer () +static void initializer() { - if (!masters) - masters = list_new(); + if (!masters) + masters = list_new(); - pthread_key_create (&thread_current, NULL); + pthread_key_create(&thread_current, NULL); } /* Allocate new thread master. */ -struct thread_master * -thread_master_create (const char *name) +struct thread_master *thread_master_create(const char *name) { - struct thread_master *rv; - struct rlimit limit; - - pthread_once (&init_once, &initializer); - - rv = XCALLOC (MTYPE_THREAD_MASTER, sizeof (struct thread_master)); - if (rv == NULL) - return NULL; - - /* Initialize master mutex */ - pthread_mutex_init (&rv->mtx, NULL); - pthread_cond_init (&rv->cancel_cond, NULL); - - /* Set name */ - rv->name = name ? XSTRDUP (MTYPE_THREAD_MASTER, name) : NULL; - - /* Initialize I/O task data structures */ - getrlimit(RLIMIT_NOFILE, &limit); - rv->fd_limit = (int)limit.rlim_cur; - rv->read = XCALLOC (MTYPE_THREAD, sizeof (struct thread *) * rv->fd_limit); - if (rv->read == NULL) - { - XFREE (MTYPE_THREAD_MASTER, rv); - return NULL; - } - rv->write = XCALLOC (MTYPE_THREAD, sizeof (struct thread *) * rv->fd_limit); - if (rv->write == NULL) - { - XFREE (MTYPE_THREAD, rv->read); - XFREE (MTYPE_THREAD_MASTER, rv); - return NULL; - } - - rv->cpu_record = hash_create ((unsigned int (*) (void *))cpu_record_hash_key, - (int (*) (const void *, const void *)) - cpu_record_hash_cmp, NULL); - - - /* Initialize the timer queues */ - rv->timer = pqueue_create(); - rv->timer->cmp = thread_timer_cmp; - rv->timer->update = thread_timer_update; - - /* Initialize thread_fetch() settings */ - rv->spin = true; - rv->handle_signals = true; - - /* Set pthread owner, should be updated by actual owner */ - rv->owner = pthread_self(); - rv->cancel_req = list_new (); - rv->cancel_req->del = cancelreq_del; - rv->canceled = true; - - /* Initialize pipe poker */ - pipe (rv->io_pipe); - set_nonblocking (rv->io_pipe[0]); - set_nonblocking (rv->io_pipe[1]); - - /* Initialize data structures for poll() */ - rv->handler.pfdsize = rv->fd_limit; - rv->handler.pfdcount = 0; - rv->handler.pfds = XCALLOC (MTYPE_THREAD_MASTER, - sizeof (struct pollfd) * rv->handler.pfdsize); - rv->handler.copy = XCALLOC (MTYPE_THREAD_MASTER, - sizeof (struct pollfd) * rv->handler.pfdsize); - - /* add to list */ - pthread_mutex_lock (&masters_mtx); - { - listnode_add (masters, rv); - } - pthread_mutex_unlock (&masters_mtx); - - return rv; + struct thread_master *rv; + struct rlimit limit; + + pthread_once(&init_once, &initializer); + + rv = XCALLOC(MTYPE_THREAD_MASTER, sizeof(struct thread_master)); + if (rv == NULL) + return NULL; + + /* Initialize master mutex */ + pthread_mutex_init(&rv->mtx, NULL); + pthread_cond_init(&rv->cancel_cond, NULL); + + /* Set name */ + rv->name = name ? XSTRDUP(MTYPE_THREAD_MASTER, name) : NULL; + + /* Initialize I/O task data structures */ + getrlimit(RLIMIT_NOFILE, &limit); + rv->fd_limit = (int)limit.rlim_cur; + rv->read = + XCALLOC(MTYPE_THREAD, sizeof(struct thread *) * rv->fd_limit); + if (rv->read == NULL) { + XFREE(MTYPE_THREAD_MASTER, rv); + return NULL; + } + rv->write = + XCALLOC(MTYPE_THREAD, sizeof(struct thread *) * rv->fd_limit); + if (rv->write == NULL) { + XFREE(MTYPE_THREAD, rv->read); + XFREE(MTYPE_THREAD_MASTER, rv); + return NULL; + } + + rv->cpu_record = hash_create( + (unsigned int (*)(void *))cpu_record_hash_key, + (int (*)(const void *, const void *))cpu_record_hash_cmp, NULL); + + + /* Initialize the timer queues */ + rv->timer = pqueue_create(); + rv->timer->cmp = thread_timer_cmp; + rv->timer->update = thread_timer_update; + + /* Initialize thread_fetch() settings */ + rv->spin = true; + rv->handle_signals = true; + + /* Set pthread owner, should be updated by actual owner */ + rv->owner = pthread_self(); + rv->cancel_req = list_new(); + rv->cancel_req->del = cancelreq_del; + rv->canceled = true; + + /* Initialize pipe poker */ + pipe(rv->io_pipe); + set_nonblocking(rv->io_pipe[0]); + set_nonblocking(rv->io_pipe[1]); + + /* Initialize data structures for poll() */ + rv->handler.pfdsize = rv->fd_limit; + rv->handler.pfdcount = 0; + rv->handler.pfds = XCALLOC(MTYPE_THREAD_MASTER, + sizeof(struct pollfd) * rv->handler.pfdsize); + rv->handler.copy = XCALLOC(MTYPE_THREAD_MASTER, + sizeof(struct pollfd) * rv->handler.pfdsize); + + /* add to list */ + pthread_mutex_lock(&masters_mtx); + { + listnode_add(masters, rv); + } + pthread_mutex_unlock(&masters_mtx); + + return rv; } /* Add a new thread to the list. */ -static void -thread_list_add (struct thread_list *list, struct thread *thread) +static void thread_list_add(struct thread_list *list, struct thread *thread) { - thread->next = NULL; - thread->prev = list->tail; - if (list->tail) - list->tail->next = thread; - else - list->head = thread; - list->tail = thread; - list->count++; + thread->next = NULL; + thread->prev = list->tail; + if (list->tail) + list->tail->next = thread; + else + list->head = thread; + list->tail = thread; + list->count++; } /* Delete a thread from the list. */ -static struct thread * -thread_list_delete (struct thread_list *list, struct thread *thread) +static struct thread *thread_list_delete(struct thread_list *list, + struct thread *thread) { - if (thread->next) - thread->next->prev = thread->prev; - else - list->tail = thread->prev; - if (thread->prev) - thread->prev->next = thread->next; - else - list->head = thread->next; - thread->next = thread->prev = NULL; - list->count--; - return thread; + if (thread->next) + thread->next->prev = thread->prev; + else + list->tail = thread->prev; + if (thread->prev) + thread->prev->next = thread->next; + else + list->head = thread->next; + thread->next = thread->prev = NULL; + list->count--; + return thread; } /* Thread list is empty or not. */ -static int -thread_empty (struct thread_list *list) +static int thread_empty(struct thread_list *list) { - return list->head ? 0 : 1; + return list->head ? 0 : 1; } /* Delete top of the list and return it. */ -static struct thread * -thread_trim_head (struct thread_list *list) +static struct thread *thread_trim_head(struct thread_list *list) { - if (!thread_empty (list)) - return thread_list_delete (list, list->head); - return NULL; + if (!thread_empty(list)) + return thread_list_delete(list, list->head); + return NULL; } /* Move thread to unuse list. */ -static void -thread_add_unuse (struct thread_master *m, struct thread *thread) +static void thread_add_unuse(struct thread_master *m, struct thread *thread) { - assert (m != NULL && thread != NULL); - assert (thread->next == NULL); - assert (thread->prev == NULL); - thread->ref = NULL; - - thread->type = THREAD_UNUSED; - thread->hist->total_active--; - thread_list_add (&m->unuse, thread); + assert(m != NULL && thread != NULL); + assert(thread->next == NULL); + assert(thread->prev == NULL); + thread->ref = NULL; + + thread->type = THREAD_UNUSED; + thread->hist->total_active--; + thread_list_add(&m->unuse, thread); } /* Free all unused thread. */ -static void -thread_list_free (struct thread_master *m, struct thread_list *list) +static void thread_list_free(struct thread_master *m, struct thread_list *list) { - struct thread *t; - struct thread *next; - - for (t = list->head; t; t = next) - { - next = t->next; - XFREE (MTYPE_THREAD, t); - list->count--; - m->alloc--; - } + struct thread *t; + struct thread *next; + + for (t = list->head; t; t = next) { + next = t->next; + XFREE(MTYPE_THREAD, t); + list->count--; + m->alloc--; + } } -static void -thread_array_free (struct thread_master *m, struct thread **thread_array) +static void thread_array_free(struct thread_master *m, + struct thread **thread_array) { - struct thread *t; - int index; - - for (index = 0; index < m->fd_limit; ++index) - { - t = thread_array[index]; - if (t) - { - thread_array[index] = NULL; - XFREE (MTYPE_THREAD, t); - m->alloc--; - } - } - XFREE (MTYPE_THREAD, thread_array); + struct thread *t; + int index; + + for (index = 0; index < m->fd_limit; ++index) { + t = thread_array[index]; + if (t) { + thread_array[index] = NULL; + XFREE(MTYPE_THREAD, t); + m->alloc--; + } + } + XFREE(MTYPE_THREAD, thread_array); } -static void -thread_queue_free (struct thread_master *m, struct pqueue *queue) +static void thread_queue_free(struct thread_master *m, struct pqueue *queue) { - int i; + int i; - for (i = 0; i < queue->size; i++) - XFREE(MTYPE_THREAD, queue->array[i]); + for (i = 0; i < queue->size; i++) + XFREE(MTYPE_THREAD, queue->array[i]); - m->alloc -= queue->size; - pqueue_delete(queue); + m->alloc -= queue->size; + pqueue_delete(queue); } /* @@ -545,359 +529,364 @@ thread_queue_free (struct thread_master *m, struct pqueue *queue) * If we are shutting down, Free up unused threads * So we can see if we forget to shut anything off */ -void -thread_master_free_unused (struct thread_master *m) +void thread_master_free_unused(struct thread_master *m) { - pthread_mutex_lock (&m->mtx); - { - struct thread *t; - while ((t = thread_trim_head(&m->unuse)) != NULL) - { - pthread_mutex_destroy (&t->mtx); - XFREE(MTYPE_THREAD, t); - } - } - pthread_mutex_unlock (&m->mtx); + pthread_mutex_lock(&m->mtx); + { + struct thread *t; + while ((t = thread_trim_head(&m->unuse)) != NULL) { + pthread_mutex_destroy(&t->mtx); + XFREE(MTYPE_THREAD, t); + } + } + pthread_mutex_unlock(&m->mtx); } /* Stop thread scheduler. */ -void -thread_master_free (struct thread_master *m) +void thread_master_free(struct thread_master *m) { - pthread_mutex_lock (&masters_mtx); - { - listnode_delete (masters, m); - } - pthread_mutex_unlock (&masters_mtx); - - thread_array_free (m, m->read); - thread_array_free (m, m->write); - thread_queue_free (m, m->timer); - thread_list_free (m, &m->event); - thread_list_free (m, &m->ready); - thread_list_free (m, &m->unuse); - pthread_mutex_destroy (&m->mtx); - close (m->io_pipe[0]); - close (m->io_pipe[1]); - list_delete (m->cancel_req); - - hash_clean (m->cpu_record, cpu_record_hash_free); - hash_free (m->cpu_record); - m->cpu_record = NULL; - - XFREE (MTYPE_THREAD_MASTER, m->handler.pfds); - XFREE (MTYPE_THREAD_MASTER, m->handler.copy); - XFREE (MTYPE_THREAD_MASTER, m); + pthread_mutex_lock(&masters_mtx); + { + listnode_delete(masters, m); + } + pthread_mutex_unlock(&masters_mtx); + + thread_array_free(m, m->read); + thread_array_free(m, m->write); + thread_queue_free(m, m->timer); + thread_list_free(m, &m->event); + thread_list_free(m, &m->ready); + thread_list_free(m, &m->unuse); + pthread_mutex_destroy(&m->mtx); + close(m->io_pipe[0]); + close(m->io_pipe[1]); + list_delete(m->cancel_req); + + hash_clean(m->cpu_record, cpu_record_hash_free); + hash_free(m->cpu_record); + m->cpu_record = NULL; + + XFREE(MTYPE_THREAD_MASTER, m->handler.pfds); + XFREE(MTYPE_THREAD_MASTER, m->handler.copy); + XFREE(MTYPE_THREAD_MASTER, m); } /* Return remain time in second. */ -unsigned long -thread_timer_remain_second (struct thread *thread) +unsigned long thread_timer_remain_second(struct thread *thread) { - int64_t remain; + int64_t remain; - pthread_mutex_lock (&thread->mtx); - { - remain = monotime_until(&thread->u.sands, NULL) / 1000000LL; - } - pthread_mutex_unlock (&thread->mtx); + pthread_mutex_lock(&thread->mtx); + { + remain = monotime_until(&thread->u.sands, NULL) / 1000000LL; + } + pthread_mutex_unlock(&thread->mtx); - return remain < 0 ? 0 : remain; + return remain < 0 ? 0 : remain; } #define debugargdef const char *funcname, const char *schedfrom, int fromln #define debugargpass funcname, schedfrom, fromln -struct timeval -thread_timer_remain(struct thread *thread) +struct timeval thread_timer_remain(struct thread *thread) { - struct timeval remain; - pthread_mutex_lock (&thread->mtx); - { - monotime_until(&thread->u.sands, &remain); - } - pthread_mutex_unlock (&thread->mtx); - return remain; + struct timeval remain; + pthread_mutex_lock(&thread->mtx); + { + monotime_until(&thread->u.sands, &remain); + } + pthread_mutex_unlock(&thread->mtx); + return remain; } /* Get new thread. */ -static struct thread * -thread_get (struct thread_master *m, u_char type, - int (*func) (struct thread *), void *arg, debugargdef) +static struct thread *thread_get(struct thread_master *m, u_char type, + int (*func)(struct thread *), void *arg, + debugargdef) { - struct thread *thread = thread_trim_head (&m->unuse); - struct cpu_thread_history tmp; - - if (! thread) - { - thread = XCALLOC (MTYPE_THREAD, sizeof (struct thread)); - /* mutex only needs to be initialized at struct creation. */ - pthread_mutex_init (&thread->mtx, NULL); - m->alloc++; - } - - thread->type = type; - thread->add_type = type; - thread->master = m; - thread->arg = arg; - thread->index = -1; - thread->yield = THREAD_YIELD_TIME_SLOT; /* default */ - thread->ref = NULL; - - /* - * So if the passed in funcname is not what we have - * stored that means the thread->hist needs to be - * updated. We keep the last one around in unused - * under the assumption that we are probably - * going to immediately allocate the same - * type of thread. - * This hopefully saves us some serious - * hash_get lookups. - */ - if (thread->funcname != funcname || - thread->func != func) - { - tmp.func = func; - tmp.funcname = funcname; - thread->hist = hash_get (m->cpu_record, &tmp, - (void * (*) (void *))cpu_record_hash_alloc); - } - thread->hist->total_active++; - thread->func = func; - thread->funcname = funcname; - thread->schedfrom = schedfrom; - thread->schedfrom_line = fromln; - - return thread; + struct thread *thread = thread_trim_head(&m->unuse); + struct cpu_thread_history tmp; + + if (!thread) { + thread = XCALLOC(MTYPE_THREAD, sizeof(struct thread)); + /* mutex only needs to be initialized at struct creation. */ + pthread_mutex_init(&thread->mtx, NULL); + m->alloc++; + } + + thread->type = type; + thread->add_type = type; + thread->master = m; + thread->arg = arg; + thread->index = -1; + thread->yield = THREAD_YIELD_TIME_SLOT; /* default */ + thread->ref = NULL; + + /* + * So if the passed in funcname is not what we have + * stored that means the thread->hist needs to be + * updated. We keep the last one around in unused + * under the assumption that we are probably + * going to immediately allocate the same + * type of thread. + * This hopefully saves us some serious + * hash_get lookups. + */ + if (thread->funcname != funcname || thread->func != func) { + tmp.func = func; + tmp.funcname = funcname; + thread->hist = + hash_get(m->cpu_record, &tmp, + (void *(*)(void *))cpu_record_hash_alloc); + } + thread->hist->total_active++; + thread->func = func; + thread->funcname = funcname; + thread->schedfrom = schedfrom; + thread->schedfrom_line = fromln; + + return thread; } -static int -fd_poll (struct thread_master *m, struct pollfd *pfds, nfds_t pfdsize, - nfds_t count, const struct timeval *timer_wait) +static int fd_poll(struct thread_master *m, struct pollfd *pfds, nfds_t pfdsize, + nfds_t count, const struct timeval *timer_wait) { - /* If timer_wait is null here, that means poll() should block indefinitely, - * unless the thread_master has overriden it by setting ->selectpoll_timeout. - * If the value is positive, it specifies the maximum number of milliseconds - * to wait. If the timeout is -1, it specifies that we should never wait and - * always return immediately even if no event is detected. If the value is - * zero, the behavior is default. */ - int timeout = -1; - - /* number of file descriptors with events */ - int num; - - if (timer_wait != NULL && m->selectpoll_timeout == 0) // use the default value - timeout = (timer_wait->tv_sec*1000) + (timer_wait->tv_usec/1000); - else if (m->selectpoll_timeout > 0) // use the user's timeout - timeout = m->selectpoll_timeout; - else if (m->selectpoll_timeout < 0) // effect a poll (return immediately) - timeout = 0; - - /* add poll pipe poker */ - assert (count + 1 < pfdsize); - pfds[count].fd = m->io_pipe[0]; - pfds[count].events = POLLIN; - pfds[count].revents = 0x00; - - num = poll (pfds, count + 1, timeout); - - unsigned char trash[64]; - if (num > 0 && pfds[count].revents != 0 && num--) - while (read (m->io_pipe[0], &trash, sizeof (trash)) > 0); - - return num; + /* If timer_wait is null here, that means poll() should block + * indefinitely, + * unless the thread_master has overriden it by setting + * ->selectpoll_timeout. + * If the value is positive, it specifies the maximum number of + * milliseconds + * to wait. If the timeout is -1, it specifies that we should never wait + * and + * always return immediately even if no event is detected. If the value + * is + * zero, the behavior is default. */ + int timeout = -1; + + /* number of file descriptors with events */ + int num; + + if (timer_wait != NULL + && m->selectpoll_timeout == 0) // use the default value + timeout = (timer_wait->tv_sec * 1000) + + (timer_wait->tv_usec / 1000); + else if (m->selectpoll_timeout > 0) // use the user's timeout + timeout = m->selectpoll_timeout; + else if (m->selectpoll_timeout + < 0) // effect a poll (return immediately) + timeout = 0; + + /* add poll pipe poker */ + assert(count + 1 < pfdsize); + pfds[count].fd = m->io_pipe[0]; + pfds[count].events = POLLIN; + pfds[count].revents = 0x00; + + num = poll(pfds, count + 1, timeout); + + unsigned char trash[64]; + if (num > 0 && pfds[count].revents != 0 && num--) + while (read(m->io_pipe[0], &trash, sizeof(trash)) > 0) + ; + + return num; } /* Add new read thread. */ -struct thread * -funcname_thread_add_read_write (int dir, struct thread_master *m, - int (*func) (struct thread *), void *arg, int fd, struct thread **t_ptr, - debugargdef) +struct thread *funcname_thread_add_read_write(int dir, struct thread_master *m, + int (*func)(struct thread *), + void *arg, int fd, + struct thread **t_ptr, + debugargdef) { - struct thread *thread = NULL; - - pthread_mutex_lock (&m->mtx); - { - if (t_ptr && *t_ptr) // thread is already scheduled; don't reschedule - { - pthread_mutex_unlock (&m->mtx); - return NULL; - } - - /* default to a new pollfd */ - nfds_t queuepos = m->handler.pfdcount; - - /* if we already have a pollfd for our file descriptor, find and use it */ - for (nfds_t i = 0; i < m->handler.pfdcount; i++) - if (m->handler.pfds[i].fd == fd) - { - queuepos = i; - break; - } - - /* make sure we have room for this fd + pipe poker fd */ - assert (queuepos + 1 < m->handler.pfdsize); - - thread = thread_get (m, dir, func, arg, debugargpass); - - m->handler.pfds[queuepos].fd = fd; - m->handler.pfds[queuepos].events |= (dir == THREAD_READ ? POLLIN : POLLOUT); - - if (queuepos == m->handler.pfdcount) - m->handler.pfdcount++; - - if (thread) - { - pthread_mutex_lock (&thread->mtx); - { - thread->u.fd = fd; - if (dir == THREAD_READ) - m->read[thread->u.fd] = thread; - else - m->write[thread->u.fd] = thread; - } - pthread_mutex_unlock (&thread->mtx); - - if (t_ptr) - { - *t_ptr = thread; - thread->ref = t_ptr; - } - } - - AWAKEN (m); - } - pthread_mutex_unlock (&m->mtx); - - return thread; + struct thread *thread = NULL; + + pthread_mutex_lock(&m->mtx); + { + if (t_ptr + && *t_ptr) // thread is already scheduled; don't reschedule + { + pthread_mutex_unlock(&m->mtx); + return NULL; + } + + /* default to a new pollfd */ + nfds_t queuepos = m->handler.pfdcount; + + /* if we already have a pollfd for our file descriptor, find and + * use it */ + for (nfds_t i = 0; i < m->handler.pfdcount; i++) + if (m->handler.pfds[i].fd == fd) { + queuepos = i; + break; + } + + /* make sure we have room for this fd + pipe poker fd */ + assert(queuepos + 1 < m->handler.pfdsize); + + thread = thread_get(m, dir, func, arg, debugargpass); + + m->handler.pfds[queuepos].fd = fd; + m->handler.pfds[queuepos].events |= + (dir == THREAD_READ ? POLLIN : POLLOUT); + + if (queuepos == m->handler.pfdcount) + m->handler.pfdcount++; + + if (thread) { + pthread_mutex_lock(&thread->mtx); + { + thread->u.fd = fd; + if (dir == THREAD_READ) + m->read[thread->u.fd] = thread; + else + m->write[thread->u.fd] = thread; + } + pthread_mutex_unlock(&thread->mtx); + + if (t_ptr) { + *t_ptr = thread; + thread->ref = t_ptr; + } + } + + AWAKEN(m); + } + pthread_mutex_unlock(&m->mtx); + + return thread; } static struct thread * -funcname_thread_add_timer_timeval (struct thread_master *m, - int (*func) (struct thread *), int type, void *arg, - struct timeval *time_relative, struct thread **t_ptr, debugargdef) +funcname_thread_add_timer_timeval(struct thread_master *m, + int (*func)(struct thread *), int type, + void *arg, struct timeval *time_relative, + struct thread **t_ptr, debugargdef) { - struct thread *thread; - struct pqueue *queue; - - assert (m != NULL); - - assert (type == THREAD_TIMER); - assert (time_relative); - - pthread_mutex_lock (&m->mtx); - { - if (t_ptr && *t_ptr) // thread is already scheduled; don't reschedule - { - pthread_mutex_unlock (&m->mtx); - return NULL; - } - - queue = m->timer; - thread = thread_get (m, type, func, arg, debugargpass); - - pthread_mutex_lock (&thread->mtx); - { - monotime(&thread->u.sands); - timeradd(&thread->u.sands, time_relative, &thread->u.sands); - pqueue_enqueue(thread, queue); - if (t_ptr) - { - *t_ptr = thread; - thread->ref = t_ptr; - } - } - pthread_mutex_unlock (&thread->mtx); - - AWAKEN (m); - } - pthread_mutex_unlock (&m->mtx); - - return thread; + struct thread *thread; + struct pqueue *queue; + + assert(m != NULL); + + assert(type == THREAD_TIMER); + assert(time_relative); + + pthread_mutex_lock(&m->mtx); + { + if (t_ptr + && *t_ptr) // thread is already scheduled; don't reschedule + { + pthread_mutex_unlock(&m->mtx); + return NULL; + } + + queue = m->timer; + thread = thread_get(m, type, func, arg, debugargpass); + + pthread_mutex_lock(&thread->mtx); + { + monotime(&thread->u.sands); + timeradd(&thread->u.sands, time_relative, + &thread->u.sands); + pqueue_enqueue(thread, queue); + if (t_ptr) { + *t_ptr = thread; + thread->ref = t_ptr; + } + } + pthread_mutex_unlock(&thread->mtx); + + AWAKEN(m); + } + pthread_mutex_unlock(&m->mtx); + + return thread; } /* Add timer event thread. */ -struct thread * -funcname_thread_add_timer (struct thread_master *m, - int (*func) (struct thread *), void *arg, long timer, - struct thread **t_ptr, debugargdef) +struct thread *funcname_thread_add_timer(struct thread_master *m, + int (*func)(struct thread *), + void *arg, long timer, + struct thread **t_ptr, debugargdef) { - struct timeval trel; + struct timeval trel; - assert (m != NULL); + assert(m != NULL); - trel.tv_sec = timer; - trel.tv_usec = 0; + trel.tv_sec = timer; + trel.tv_usec = 0; - return funcname_thread_add_timer_timeval (m, func, THREAD_TIMER, arg, &trel, - t_ptr, debugargpass); + return funcname_thread_add_timer_timeval(m, func, THREAD_TIMER, arg, + &trel, t_ptr, debugargpass); } /* Add timer event thread with "millisecond" resolution */ -struct thread * -funcname_thread_add_timer_msec (struct thread_master *m, - int (*func) (struct thread *), void *arg, long timer, - struct thread **t_ptr, debugargdef) +struct thread *funcname_thread_add_timer_msec(struct thread_master *m, + int (*func)(struct thread *), + void *arg, long timer, + struct thread **t_ptr, + debugargdef) { - struct timeval trel; + struct timeval trel; - assert (m != NULL); + assert(m != NULL); - trel.tv_sec = timer / 1000; - trel.tv_usec = 1000*(timer % 1000); + trel.tv_sec = timer / 1000; + trel.tv_usec = 1000 * (timer % 1000); - return funcname_thread_add_timer_timeval (m, func, THREAD_TIMER, arg, &trel, - t_ptr, debugargpass); + return funcname_thread_add_timer_timeval(m, func, THREAD_TIMER, arg, + &trel, t_ptr, debugargpass); } /* Add timer event thread with "millisecond" resolution */ -struct thread * -funcname_thread_add_timer_tv (struct thread_master *m, - int (*func) (struct thread *), void *arg, struct timeval *tv, - struct thread **t_ptr, debugargdef) +struct thread *funcname_thread_add_timer_tv(struct thread_master *m, + int (*func)(struct thread *), + void *arg, struct timeval *tv, + struct thread **t_ptr, debugargdef) { - return funcname_thread_add_timer_timeval (m, func, THREAD_TIMER, arg, tv, - t_ptr, debugargpass); + return funcname_thread_add_timer_timeval(m, func, THREAD_TIMER, arg, tv, + t_ptr, debugargpass); } /* Add simple event thread. */ -struct thread * -funcname_thread_add_event (struct thread_master *m, - int (*func) (struct thread *), void *arg, int val, - struct thread **t_ptr, debugargdef) +struct thread *funcname_thread_add_event(struct thread_master *m, + int (*func)(struct thread *), + void *arg, int val, + struct thread **t_ptr, debugargdef) { - struct thread *thread; - - assert (m != NULL); - - pthread_mutex_lock (&m->mtx); - { - if (t_ptr && *t_ptr) // thread is already scheduled; don't reschedule - { - pthread_mutex_unlock (&m->mtx); - return NULL; - } - - thread = thread_get (m, THREAD_EVENT, func, arg, debugargpass); - pthread_mutex_lock (&thread->mtx); - { - thread->u.val = val; - thread_list_add (&m->event, thread); - } - pthread_mutex_unlock (&thread->mtx); - - if (t_ptr) - { - *t_ptr = thread; - thread->ref = t_ptr; - } - - AWAKEN (m); - } - pthread_mutex_unlock (&m->mtx); - - return thread; + struct thread *thread; + + assert(m != NULL); + + pthread_mutex_lock(&m->mtx); + { + if (t_ptr + && *t_ptr) // thread is already scheduled; don't reschedule + { + pthread_mutex_unlock(&m->mtx); + return NULL; + } + + thread = thread_get(m, THREAD_EVENT, func, arg, debugargpass); + pthread_mutex_lock(&thread->mtx); + { + thread->u.val = val; + thread_list_add(&m->event, thread); + } + pthread_mutex_unlock(&thread->mtx); + + if (t_ptr) { + *t_ptr = thread; + thread->ref = t_ptr; + } + + AWAKEN(m); + } + pthread_mutex_unlock(&m->mtx); + + return thread; } /* Thread cancellation ------------------------------------------------------ */ @@ -916,43 +905,42 @@ funcname_thread_add_event (struct thread_master *m, * - POLLIN * - POLLOUT */ -static void -thread_cancel_rw (struct thread_master *master, int fd, short state) +static void thread_cancel_rw(struct thread_master *master, int fd, short state) { - /* Cancel POLLHUP too just in case some bozo set it */ - state |= POLLHUP; - - /* find the index of corresponding pollfd */ - nfds_t i; - - for (i = 0; i < master->handler.pfdcount; i++) - if (master->handler.pfds[i].fd == fd) - break; - - /* NOT out event. */ - master->handler.pfds[i].events &= ~(state); - - /* If all events are canceled, delete / resize the pollfd array. */ - if (master->handler.pfds[i].events == 0) - { - memmove(master->handler.pfds + i, master->handler.pfds + i + 1, - (master->handler.pfdcount - i - 1) * sizeof (struct pollfd)); - master->handler.pfdcount--; - } - - /* If we have the same pollfd in the copy, perform the same operations, - * otherwise return. */ - if (i >= master->handler.copycount) - return; - - master->handler.copy[i].events &= ~(state); - - if (master->handler.copy[i].events == 0) - { - memmove(master->handler.copy + i, master->handler.copy + i + 1, - (master->handler.copycount - i - 1) * sizeof (struct pollfd)); - master->handler.copycount--; - } + /* Cancel POLLHUP too just in case some bozo set it */ + state |= POLLHUP; + + /* find the index of corresponding pollfd */ + nfds_t i; + + for (i = 0; i < master->handler.pfdcount; i++) + if (master->handler.pfds[i].fd == fd) + break; + + /* NOT out event. */ + master->handler.pfds[i].events &= ~(state); + + /* If all events are canceled, delete / resize the pollfd array. */ + if (master->handler.pfds[i].events == 0) { + memmove(master->handler.pfds + i, master->handler.pfds + i + 1, + (master->handler.pfdcount - i - 1) + * sizeof(struct pollfd)); + master->handler.pfdcount--; + } + + /* If we have the same pollfd in the copy, perform the same operations, + * otherwise return. */ + if (i >= master->handler.copycount) + return; + + master->handler.copy[i].events &= ~(state); + + if (master->handler.copy[i].events == 0) { + memmove(master->handler.copy + i, master->handler.copy + i + 1, + (master->handler.copycount - i - 1) + * sizeof(struct pollfd)); + master->handler.copycount--; + } } /** @@ -963,120 +951,109 @@ thread_cancel_rw (struct thread_master *master, int fd, short state) * @param master the thread master to process * @REQUIRE master->mtx */ -static void -do_thread_cancel (struct thread_master *master) +static void do_thread_cancel(struct thread_master *master) { - struct thread_list *list = NULL; - struct pqueue *queue = NULL; - struct thread **thread_array = NULL; - struct thread *thread; - - struct cancel_req *cr; - struct listnode *ln; - for (ALL_LIST_ELEMENTS_RO (master->cancel_req, ln, cr)) - { - /* If this is an event object cancellation, linear search through event - * list deleting any events which have the specified argument. We also - * need to check every thread in the ready queue. */ - if (cr->eventobj) - { - struct thread *t; - thread = master->event.head; - - while (thread) - { - t = thread; - thread = t->next; - - if (t->arg == cr->eventobj) - { - thread_list_delete (&master->event, t); - if (t->ref) - *t->ref = NULL; - thread_add_unuse (master, t); - } - } - - thread = master->ready.head; - while (thread) - { - t = thread; - thread = t->next; - - if (t->arg == cr->eventobj) - { - thread_list_delete (&master->ready, t); - if (t->ref) - *t->ref = NULL; - thread_add_unuse (master, t); - } - } - continue; - } - - /* The pointer varies depending on whether the cancellation request was - * made asynchronously or not. If it was, we need to check whether the - * thread even exists anymore before cancelling it. */ - thread = (cr->thread) ? cr->thread : *cr->threadref; - - if (!thread) - continue; - - /* Determine the appropriate queue to cancel the thread from */ - switch (thread->type) - { - case THREAD_READ: - thread_cancel_rw (master, thread->u.fd, POLLIN); - thread_array = master->read; - break; - case THREAD_WRITE: - thread_cancel_rw (master, thread->u.fd, POLLOUT); - thread_array = master->write; - break; - case THREAD_TIMER: - queue = master->timer; - break; - case THREAD_EVENT: - list = &master->event; - break; - case THREAD_READY: - list = &master->ready; - break; - default: - continue; - break; - } - - if (queue) - { - assert(thread->index >= 0); - pqueue_remove (thread, queue); - } - else if (list) - { - thread_list_delete (list, thread); - } - else if (thread_array) - { - thread_array[thread->u.fd] = NULL; - } - else - { - assert(!"Thread should be either in queue or list or array!"); - } - - if (thread->ref) - *thread->ref = NULL; - - thread_add_unuse (thread->master, thread); - } - - /* Delete and free all cancellation requests */ - list_delete_all_node (master->cancel_req); - - /* Wake up any threads which may be blocked in thread_cancel_async() */ - master->canceled = true; - pthread_cond_broadcast (&master->cancel_cond); + struct thread_list *list = NULL; + struct pqueue *queue = NULL; + struct thread **thread_array = NULL; + struct thread *thread; + + struct cancel_req *cr; + struct listnode *ln; + for (ALL_LIST_ELEMENTS_RO(master->cancel_req, ln, cr)) { + /* If this is an event object cancellation, linear search + * through event + * list deleting any events which have the specified argument. + * We also + * need to check every thread in the ready queue. */ + if (cr->eventobj) { + struct thread *t; + thread = master->event.head; + + while (thread) { + t = thread; + thread = t->next; + + if (t->arg == cr->eventobj) { + thread_list_delete(&master->event, t); + if (t->ref) + *t->ref = NULL; + thread_add_unuse(master, t); + } + } + + thread = master->ready.head; + while (thread) { + t = thread; + thread = t->next; + + if (t->arg == cr->eventobj) { + thread_list_delete(&master->ready, t); + if (t->ref) + *t->ref = NULL; + thread_add_unuse(master, t); + } + } + continue; + } + + /* The pointer varies depending on whether the cancellation + * request was + * made asynchronously or not. If it was, we need to check + * whether the + * thread even exists anymore before cancelling it. */ + thread = (cr->thread) ? cr->thread : *cr->threadref; + + if (!thread) + continue; + + /* Determine the appropriate queue to cancel the thread from */ + switch (thread->type) { + case THREAD_READ: + thread_cancel_rw(master, thread->u.fd, POLLIN); + thread_array = master->read; + break; + case THREAD_WRITE: + thread_cancel_rw(master, thread->u.fd, POLLOUT); + thread_array = master->write; + break; + case THREAD_TIMER: + queue = master->timer; + break; + case THREAD_EVENT: + list = &master->event; + break; + case THREAD_READY: + list = &master->ready; + break; + default: + continue; + break; + } + + if (queue) { + assert(thread->index >= 0); + pqueue_remove(thread, queue); + } else if (list) { + thread_list_delete(list, thread); + } else if (thread_array) { + thread_array[thread->u.fd] = NULL; + } else { + assert(!"Thread should be either in queue or list or array!"); + } + + if (thread->ref) + *thread->ref = NULL; + + thread_add_unuse(thread->master, thread); + } + + /* Delete and free all cancellation requests */ + list_delete_all_node(master->cancel_req); + + /* Wake up any threads which may be blocked in thread_cancel_async() */ + master->canceled = true; + pthread_cond_broadcast(&master->cancel_cond); } /** @@ -1087,19 +1064,19 @@ do_thread_cancel (struct thread_master *master) * @param m the thread_master to cancel from * @param arg the argument passed when creating the event */ -void -thread_cancel_event (struct thread_master *master, void *arg) +void thread_cancel_event(struct thread_master *master, void *arg) { - assert (master->owner == pthread_self()); - - pthread_mutex_lock (&master->mtx); - { - struct cancel_req *cr = XCALLOC (MTYPE_TMP, sizeof (struct cancel_req)); - cr->eventobj = arg; - listnode_add (master->cancel_req, cr); - do_thread_cancel(master); - } - pthread_mutex_unlock (&master->mtx); + assert(master->owner == pthread_self()); + + pthread_mutex_lock(&master->mtx); + { + struct cancel_req *cr = + XCALLOC(MTYPE_TMP, sizeof(struct cancel_req)); + cr->eventobj = arg; + listnode_add(master->cancel_req, cr); + do_thread_cancel(master); + } + pthread_mutex_unlock(&master->mtx); } /** @@ -1109,19 +1086,19 @@ thread_cancel_event (struct thread_master *master, void *arg) * * @param thread task to cancel */ -void -thread_cancel (struct thread *thread) +void thread_cancel(struct thread *thread) { - assert (thread->master->owner == pthread_self()); - - pthread_mutex_lock (&thread->master->mtx); - { - struct cancel_req *cr = XCALLOC (MTYPE_TMP, sizeof (struct cancel_req)); - cr->thread = thread; - listnode_add (thread->master->cancel_req, cr); - do_thread_cancel (thread->master); - } - pthread_mutex_unlock (&thread->master->mtx); + assert(thread->master->owner == pthread_self()); + + pthread_mutex_lock(&thread->master->mtx); + { + struct cancel_req *cr = + XCALLOC(MTYPE_TMP, sizeof(struct cancel_req)); + cr->thread = thread; + listnode_add(thread->master->cancel_req, cr); + do_thread_cancel(thread->master); + } + pthread_mutex_unlock(&thread->master->mtx); } /** @@ -1148,82 +1125,75 @@ thread_cancel (struct thread *thread) * @param thread pointer to thread to cancel * @param eventobj the event */ -void -thread_cancel_async (struct thread_master *master, struct thread **thread, - void *eventobj) +void thread_cancel_async(struct thread_master *master, struct thread **thread, + void *eventobj) { - assert (!(thread && eventobj) && (thread || eventobj)); - assert (master->owner != pthread_self()); - - pthread_mutex_lock (&master->mtx); - { - master->canceled = false; - - if (thread) - { - struct cancel_req *cr = - XCALLOC (MTYPE_TMP, sizeof (struct cancel_req)); - cr->threadref = thread; - listnode_add (master->cancel_req, cr); - } - else if (eventobj) - { - struct cancel_req *cr = - XCALLOC (MTYPE_TMP, sizeof (struct cancel_req)); - cr->eventobj = eventobj; - listnode_add (master->cancel_req, cr); - } - AWAKEN (master); - - while (!master->canceled) - pthread_cond_wait (&master->cancel_cond, &master->mtx); - } - pthread_mutex_unlock (&master->mtx); + assert(!(thread && eventobj) && (thread || eventobj)); + assert(master->owner != pthread_self()); + + pthread_mutex_lock(&master->mtx); + { + master->canceled = false; + + if (thread) { + struct cancel_req *cr = + XCALLOC(MTYPE_TMP, sizeof(struct cancel_req)); + cr->threadref = thread; + listnode_add(master->cancel_req, cr); + } else if (eventobj) { + struct cancel_req *cr = + XCALLOC(MTYPE_TMP, sizeof(struct cancel_req)); + cr->eventobj = eventobj; + listnode_add(master->cancel_req, cr); + } + AWAKEN(master); + + while (!master->canceled) + pthread_cond_wait(&master->cancel_cond, &master->mtx); + } + pthread_mutex_unlock(&master->mtx); } /* ------------------------------------------------------------------------- */ -static struct timeval * -thread_timer_wait (struct pqueue *queue, struct timeval *timer_val) +static struct timeval *thread_timer_wait(struct pqueue *queue, + struct timeval *timer_val) { - if (queue->size) - { - struct thread *next_timer = queue->array[0]; - monotime_until(&next_timer->u.sands, timer_val); - return timer_val; - } - return NULL; + if (queue->size) { + struct thread *next_timer = queue->array[0]; + monotime_until(&next_timer->u.sands, timer_val); + return timer_val; + } + return NULL; } -static struct thread * -thread_run (struct thread_master *m, struct thread *thread, - struct thread *fetch) +static struct thread *thread_run(struct thread_master *m, struct thread *thread, + struct thread *fetch) { - *fetch = *thread; - thread_add_unuse (m, thread); - return fetch; + *fetch = *thread; + thread_add_unuse(m, thread); + return fetch; } -static int -thread_process_io_helper (struct thread_master *m, struct thread *thread, - short state, int pos) +static int thread_process_io_helper(struct thread_master *m, + struct thread *thread, short state, int pos) { - struct thread **thread_array; - - if (!thread) - return 0; - - if (thread->type == THREAD_READ) - thread_array = m->read; - else - thread_array = m->write; - - thread_array[thread->u.fd] = NULL; - thread_list_add (&m->ready, thread); - thread->type = THREAD_READY; - /* if another pthread scheduled this file descriptor for the event we're - * responding to, no problem; we're getting to it now */ - thread->master->handler.pfds[pos].events &= ~(state); - return 1; + struct thread **thread_array; + + if (!thread) + return 0; + + if (thread->type == THREAD_READ) + thread_array = m->read; + else + thread_array = m->write; + + thread_array[thread->u.fd] = NULL; + thread_list_add(&m->ready, thread); + thread->type = THREAD_READY; + /* if another pthread scheduled this file descriptor for the event we're + * responding to, no problem; we're getting to it now */ + thread->master->handler.pfds[pos].events &= ~(state); + return 1; } /** @@ -1235,211 +1205,217 @@ thread_process_io_helper (struct thread_master *m, struct thread *thread, * @param m the thread master * @param num the number of active file descriptors (return value of poll()) */ -static void -thread_process_io (struct thread_master *m, unsigned int num) +static void thread_process_io(struct thread_master *m, unsigned int num) { - unsigned int ready = 0; - struct pollfd *pfds = m->handler.copy; - - for (nfds_t i = 0; i < m->handler.copycount && ready < num ; ++i) - { - /* no event for current fd? immediately continue */ - if (pfds[i].revents == 0) - continue; - - ready++; - - /* Unless someone has called thread_cancel from another pthread, the only - * thing that could have changed in m->handler.pfds while we were - * asleep is the .events field in a given pollfd. Barring thread_cancel() - * that value should be a superset of the values we have in our copy, so - * there's no need to update it. Similarily, barring deletion, the fd - * should still be a valid index into the master's pfds. */ - if (pfds[i].revents & (POLLIN | POLLHUP)) - thread_process_io_helper(m, m->read[pfds[i].fd], POLLIN, i); - if (pfds[i].revents & POLLOUT) - thread_process_io_helper(m, m->write[pfds[i].fd], POLLOUT, i); - - /* if one of our file descriptors is garbage, remove the same from - * both pfds + update sizes and index */ - if (pfds[i].revents & POLLNVAL) - { - memmove (m->handler.pfds + i, - m->handler.pfds + i + 1, - (m->handler.pfdcount - i - 1) * sizeof(struct pollfd)); - m->handler.pfdcount--; - - memmove (pfds + i, pfds + i + 1, - (m->handler.copycount - i - 1) * sizeof(struct pollfd)); - m->handler.copycount--; - - i--; - } - } + unsigned int ready = 0; + struct pollfd *pfds = m->handler.copy; + + for (nfds_t i = 0; i < m->handler.copycount && ready < num; ++i) { + /* no event for current fd? immediately continue */ + if (pfds[i].revents == 0) + continue; + + ready++; + + /* Unless someone has called thread_cancel from another pthread, + * the only + * thing that could have changed in m->handler.pfds while we + * were + * asleep is the .events field in a given pollfd. Barring + * thread_cancel() + * that value should be a superset of the values we have in our + * copy, so + * there's no need to update it. Similarily, barring deletion, + * the fd + * should still be a valid index into the master's pfds. */ + if (pfds[i].revents & (POLLIN | POLLHUP)) + thread_process_io_helper(m, m->read[pfds[i].fd], POLLIN, + i); + if (pfds[i].revents & POLLOUT) + thread_process_io_helper(m, m->write[pfds[i].fd], + POLLOUT, i); + + /* if one of our file descriptors is garbage, remove the same + * from + * both pfds + update sizes and index */ + if (pfds[i].revents & POLLNVAL) { + memmove(m->handler.pfds + i, m->handler.pfds + i + 1, + (m->handler.pfdcount - i - 1) + * sizeof(struct pollfd)); + m->handler.pfdcount--; + + memmove(pfds + i, pfds + i + 1, + (m->handler.copycount - i - 1) + * sizeof(struct pollfd)); + m->handler.copycount--; + + i--; + } + } } /* Add all timers that have popped to the ready list. */ -static unsigned int -thread_process_timers (struct pqueue *queue, struct timeval *timenow) +static unsigned int thread_process_timers(struct pqueue *queue, + struct timeval *timenow) { - struct thread *thread; - unsigned int ready = 0; - - while (queue->size) - { - thread = queue->array[0]; - if (timercmp (timenow, &thread->u.sands, <)) - return ready; - pqueue_dequeue(queue); - thread->type = THREAD_READY; - thread_list_add (&thread->master->ready, thread); - ready++; - } - return ready; + struct thread *thread; + unsigned int ready = 0; + + while (queue->size) { + thread = queue->array[0]; + if (timercmp(timenow, &thread->u.sands, <)) + return ready; + pqueue_dequeue(queue); + thread->type = THREAD_READY; + thread_list_add(&thread->master->ready, thread); + ready++; + } + return ready; } /* process a list en masse, e.g. for event thread lists */ -static unsigned int -thread_process (struct thread_list *list) +static unsigned int thread_process(struct thread_list *list) { - struct thread *thread; - struct thread *next; - unsigned int ready = 0; - - for (thread = list->head; thread; thread = next) - { - next = thread->next; - thread_list_delete (list, thread); - thread->type = THREAD_READY; - thread_list_add (&thread->master->ready, thread); - ready++; - } - return ready; + struct thread *thread; + struct thread *next; + unsigned int ready = 0; + + for (thread = list->head; thread; thread = next) { + next = thread->next; + thread_list_delete(list, thread); + thread->type = THREAD_READY; + thread_list_add(&thread->master->ready, thread); + ready++; + } + return ready; } /* Fetch next ready thread. */ -struct thread * -thread_fetch (struct thread_master *m, struct thread *fetch) +struct thread *thread_fetch(struct thread_master *m, struct thread *fetch) { - struct thread *thread = NULL; - struct timeval now; - struct timeval zerotime = { 0, 0 }; - struct timeval tv; - struct timeval *tw = NULL; - - int num = 0; - - do { - /* Handle signals if any */ - if (m->handle_signals) - quagga_sigevent_process (); - - pthread_mutex_lock (&m->mtx); - - /* Process any pending cancellation requests */ - do_thread_cancel (m); - - /* Post events to ready queue. This must come before the following block - * since events should occur immediately */ - thread_process (&m->event); - - /* If there are no tasks on the ready queue, we will poll() until a timer - * expires or we receive I/O, whichever comes first. The strategy for doing - * this is: - * - * - If there are events pending, set the poll() timeout to zero - * - If there are no events pending, but there are timers pending, set the - * timeout to the smallest remaining time on any timer - * - If there are neither timers nor events pending, but there are file - * descriptors pending, block indefinitely in poll() - * - If nothing is pending, it's time for the application to die - * - * In every case except the last, we need to hit poll() at least once per - * loop to avoid starvation by events */ - - if (m->ready.count == 0) - tw = thread_timer_wait (m->timer, &tv); - - if (m->ready.count != 0 || (tw && !timercmp (tw, &zerotime, >))) - tw = &zerotime; - - if (!tw && m->handler.pfdcount == 0) - { /* die */ - pthread_mutex_unlock (&m->mtx); - fetch = NULL; - break; - } - - /* Copy pollfd array + # active pollfds in it. Not necessary to copy - * the array size as this is fixed. */ - m->handler.copycount = m->handler.pfdcount; - memcpy (m->handler.copy, m->handler.pfds, - m->handler.copycount * sizeof (struct pollfd)); - - pthread_mutex_unlock (&m->mtx); - { - num = fd_poll (m, m->handler.copy, m->handler.pfdsize, - m->handler.copycount, tw); - } - pthread_mutex_lock (&m->mtx); - - /* Handle any errors received in poll() */ - if (num < 0) - { - if (errno == EINTR) - { - pthread_mutex_unlock (&m->mtx); - continue; /* loop around to signal handler */ - } - - /* else die */ - zlog_warn ("poll() error: %s", safe_strerror (errno)); - pthread_mutex_unlock (&m->mtx); - fetch = NULL; - break; - } - - /* Since we could have received more cancellation requests during poll(), process those */ - do_thread_cancel (m); - - /* Post timers to ready queue. */ - monotime(&now); - thread_process_timers (m->timer, &now); - - /* Post I/O to ready queue. */ - if (num > 0) - thread_process_io (m, num); - - /* If we have a ready task, break the loop and return it to the caller */ - if ((thread = thread_trim_head (&m->ready))) - { - fetch = thread_run (m, thread, fetch); - if (fetch->ref) - *fetch->ref = NULL; - } - - pthread_mutex_unlock (&m->mtx); - - } while (!thread && m->spin); - - return fetch; + struct thread *thread = NULL; + struct timeval now; + struct timeval zerotime = {0, 0}; + struct timeval tv; + struct timeval *tw = NULL; + + int num = 0; + + do { + /* Handle signals if any */ + if (m->handle_signals) + quagga_sigevent_process(); + + pthread_mutex_lock(&m->mtx); + + /* Process any pending cancellation requests */ + do_thread_cancel(m); + + /* Post events to ready queue. This must come before the + * following block + * since events should occur immediately */ + thread_process(&m->event); + + /* If there are no tasks on the ready queue, we will poll() + * until a timer + * expires or we receive I/O, whichever comes first. The + * strategy for doing + * this is: + * + * - If there are events pending, set the poll() timeout to zero + * - If there are no events pending, but there are timers + * pending, set the + * timeout to the smallest remaining time on any timer + * - If there are neither timers nor events pending, but there + * are file + * descriptors pending, block indefinitely in poll() + * - If nothing is pending, it's time for the application to die + * + * In every case except the last, we need to hit poll() at least + * once per + * loop to avoid starvation by events */ + + if (m->ready.count == 0) + tw = thread_timer_wait(m->timer, &tv); + + if (m->ready.count != 0 || (tw && !timercmp(tw, &zerotime, >))) + tw = &zerotime; + + if (!tw && m->handler.pfdcount == 0) { /* die */ + pthread_mutex_unlock(&m->mtx); + fetch = NULL; + break; + } + + /* Copy pollfd array + # active pollfds in it. Not necessary to + * copy + * the array size as this is fixed. */ + m->handler.copycount = m->handler.pfdcount; + memcpy(m->handler.copy, m->handler.pfds, + m->handler.copycount * sizeof(struct pollfd)); + + pthread_mutex_unlock(&m->mtx); + { + num = fd_poll(m, m->handler.copy, m->handler.pfdsize, + m->handler.copycount, tw); + } + pthread_mutex_lock(&m->mtx); + + /* Handle any errors received in poll() */ + if (num < 0) { + if (errno == EINTR) { + pthread_mutex_unlock(&m->mtx); + continue; /* loop around to signal handler */ + } + + /* else die */ + zlog_warn("poll() error: %s", safe_strerror(errno)); + pthread_mutex_unlock(&m->mtx); + fetch = NULL; + break; + } + + /* Since we could have received more cancellation requests + * during poll(), process those */ + do_thread_cancel(m); + + /* Post timers to ready queue. */ + monotime(&now); + thread_process_timers(m->timer, &now); + + /* Post I/O to ready queue. */ + if (num > 0) + thread_process_io(m, num); + + /* If we have a ready task, break the loop and return it to the + * caller */ + if ((thread = thread_trim_head(&m->ready))) { + fetch = thread_run(m, thread, fetch); + if (fetch->ref) + *fetch->ref = NULL; + } + + pthread_mutex_unlock(&m->mtx); + + } while (!thread && m->spin); + + return fetch; } -static unsigned long -timeval_elapsed (struct timeval a, struct timeval b) +static unsigned long timeval_elapsed(struct timeval a, struct timeval b) { - return (((a.tv_sec - b.tv_sec) * TIMER_SECOND_MICRO) - + (a.tv_usec - b.tv_usec)); + return (((a.tv_sec - b.tv_sec) * TIMER_SECOND_MICRO) + + (a.tv_usec - b.tv_usec)); } -unsigned long -thread_consumed_time (RUSAGE_T *now, RUSAGE_T *start, unsigned long *cputime) +unsigned long thread_consumed_time(RUSAGE_T *now, RUSAGE_T *start, + unsigned long *cputime) { - /* This is 'user + sys' time. */ - *cputime = timeval_elapsed (now->cpu.ru_utime, start->cpu.ru_utime) + - timeval_elapsed (now->cpu.ru_stime, start->cpu.ru_stime); - return timeval_elapsed (now->real, start->real); + /* This is 'user + sys' time. */ + *cputime = timeval_elapsed(now->cpu.ru_utime, start->cpu.ru_utime) + + timeval_elapsed(now->cpu.ru_stime, start->cpu.ru_stime); + return timeval_elapsed(now->real, start->real); } /* We should aim to yield after yield milliseconds, which defaults @@ -1449,110 +1425,103 @@ thread_consumed_time (RUSAGE_T *now, RUSAGE_T *start, unsigned long *cputime) contexts. The things to consider are whether the thread may have blocked (in which case wall time increases, but CPU time does not), or whether the system is heavily loaded with other processes competing - for CPU time. On balance, wall clock time seems to make sense. + for CPU time. On balance, wall clock time seems to make sense. Plus it has the added benefit that gettimeofday should be faster than calling getrusage. */ -int -thread_should_yield (struct thread *thread) +int thread_should_yield(struct thread *thread) { - int result; - pthread_mutex_lock (&thread->mtx); - { - result = monotime_since(&thread->real, NULL) > (int64_t)thread->yield; - } - pthread_mutex_unlock (&thread->mtx); - return result; + int result; + pthread_mutex_lock(&thread->mtx); + { + result = monotime_since(&thread->real, NULL) + > (int64_t)thread->yield; + } + pthread_mutex_unlock(&thread->mtx); + return result; } -void -thread_set_yield_time (struct thread *thread, unsigned long yield_time) +void thread_set_yield_time(struct thread *thread, unsigned long yield_time) { - pthread_mutex_lock (&thread->mtx); - { - thread->yield = yield_time; - } - pthread_mutex_unlock (&thread->mtx); + pthread_mutex_lock(&thread->mtx); + { + thread->yield = yield_time; + } + pthread_mutex_unlock(&thread->mtx); } -void -thread_getrusage (RUSAGE_T *r) +void thread_getrusage(RUSAGE_T *r) { - monotime(&r->real); - getrusage(RUSAGE_SELF, &(r->cpu)); + monotime(&r->real); + getrusage(RUSAGE_SELF, &(r->cpu)); } /* We check thread consumed time. If the system has getrusage, we'll use that to get in-depth stats on the performance of the thread in addition to wall clock time stats from gettimeofday. */ -void -thread_call (struct thread *thread) +void thread_call(struct thread *thread) { - unsigned long realtime, cputime; - RUSAGE_T before, after; + unsigned long realtime, cputime; + RUSAGE_T before, after; - GETRUSAGE (&before); - thread->real = before.real; + GETRUSAGE(&before); + thread->real = before.real; - pthread_setspecific (thread_current, thread); - (*thread->func) (thread); - pthread_setspecific (thread_current, NULL); + pthread_setspecific(thread_current, thread); + (*thread->func)(thread); + pthread_setspecific(thread_current, NULL); - GETRUSAGE (&after); + GETRUSAGE(&after); - realtime = thread_consumed_time (&after, &before, &cputime); - thread->hist->real.total += realtime; - if (thread->hist->real.max < realtime) - thread->hist->real.max = realtime; - thread->hist->cpu.total += cputime; - if (thread->hist->cpu.max < cputime) - thread->hist->cpu.max = cputime; + realtime = thread_consumed_time(&after, &before, &cputime); + thread->hist->real.total += realtime; + if (thread->hist->real.max < realtime) + thread->hist->real.max = realtime; + thread->hist->cpu.total += cputime; + if (thread->hist->cpu.max < cputime) + thread->hist->cpu.max = cputime; - ++(thread->hist->total_calls); - thread->hist->types |= (1 << thread->add_type); + ++(thread->hist->total_calls); + thread->hist->types |= (1 << thread->add_type); #ifdef CONSUMED_TIME_CHECK - if (realtime > CONSUMED_TIME_CHECK) - { - /* - * We have a CPU Hog on our hands. - * Whinge about it now, so we're aware this is yet another task - * to fix. - */ - zlog_warn ("SLOW THREAD: task %s (%lx) ran for %lums (cpu time %lums)", - thread->funcname, - (unsigned long) thread->func, - realtime/1000, cputime/1000); - } + if (realtime > CONSUMED_TIME_CHECK) { + /* + * We have a CPU Hog on our hands. + * Whinge about it now, so we're aware this is yet another task + * to fix. + */ + zlog_warn( + "SLOW THREAD: task %s (%lx) ran for %lums (cpu time %lums)", + thread->funcname, (unsigned long)thread->func, + realtime / 1000, cputime / 1000); + } #endif /* CONSUMED_TIME_CHECK */ } /* Execute thread */ -void -funcname_thread_execute (struct thread_master *m, - int (*func)(struct thread *), - void *arg, - int val, - debugargdef) +void funcname_thread_execute(struct thread_master *m, + int (*func)(struct thread *), void *arg, int val, + debugargdef) { - struct cpu_thread_history tmp; - struct thread dummy; + struct cpu_thread_history tmp; + struct thread dummy; - memset (&dummy, 0, sizeof (struct thread)); + memset(&dummy, 0, sizeof(struct thread)); - pthread_mutex_init (&dummy.mtx, NULL); - dummy.type = THREAD_EVENT; - dummy.add_type = THREAD_EXECUTE; - dummy.master = NULL; - dummy.arg = arg; - dummy.u.val = val; + pthread_mutex_init(&dummy.mtx, NULL); + dummy.type = THREAD_EVENT; + dummy.add_type = THREAD_EXECUTE; + dummy.master = NULL; + dummy.arg = arg; + dummy.u.val = val; - tmp.func = dummy.func = func; - tmp.funcname = dummy.funcname = funcname; - dummy.hist = hash_get (m->cpu_record, &tmp, - (void * (*) (void *))cpu_record_hash_alloc); + tmp.func = dummy.func = func; + tmp.funcname = dummy.funcname = funcname; + dummy.hist = hash_get(m->cpu_record, &tmp, + (void *(*)(void *))cpu_record_hash_alloc); - dummy.schedfrom = schedfrom; - dummy.schedfrom_line = fromln; + dummy.schedfrom = schedfrom; + dummy.schedfrom_line = fromln; - thread_call (&dummy); + thread_call(&dummy); } |