Create wrapper API for apr_random;

use in mod_lbmethod_heartbeat and mod_serf to
- replace some needles use of apr_generate_random_bytes
- remove code duplication


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@1171247 13f79535-47bb-0310-9956-ffa450edef68

1 files changed, 20 insertions, 0 deletions

diff --git a/include/httpd.h b/include/httpd.h
index a9b82a2f6c..d009e68d31 100644
--- a/include/httpd.h
+++ b/include/httpd.h
@@ -2067,6 +2067,26 @@ AP_DECLARE(const char *) ap_strstr_c(const char *s, const char *c);
 
 #endif
 
+/**
+ * Generate pseudo random bytes.
+ * This is a convenience interface to apr_random. It is cheaper but less
+ * secure than apr_generate_random_bytes().
+ * @param buf where to store the bytes
+ * @param size number of bytes to generate
+ * @note ap_random_insecure_bytes() is thread-safe, it uses a mutex on
+ *       threaded MPMs.
+ */
+APR_DECLARE(void) ap_random_insecure_bytes(void *buf, apr_size_t size);
+
+/**
+ * Get a pseudo random number in a range.
+ * @param min low end of range
+ * @param max high end of range
+ * @return a number in the range
+ */
+APR_DECLARE(apr_uint32_t) ap_random_pick(apr_uint32_t min, apr_uint32_t max);
+
+
 #define AP_NORESTART APR_OS_START_USEERR + 1
 
 #ifdef __cplusplus