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https://github.com/signalwire/freeswitch.git
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farewell crash protection
git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@14919 d0543943-73ff-0310-b7d9-9358b9ac24b2
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@@ -212,75 +212,9 @@ static void switch_core_standard_on_hibernate(switch_core_session_t *session)
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switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_DEBUG, "%s Standard HIBERNATE\n", switch_channel_get_name(session->channel));
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}
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#include <sqlite3.h>
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#include "../../../libs/sqlite/src/hash.h"
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//static switch_hash_t *stack_table = NULL;
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static Hash stack_table;
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static switch_mutex_t *stack_mutex = NULL;
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#if defined (__GNUC__) && defined (LINUX) && defined (HAVE_EXECINFO_H)
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#include <execinfo.h>
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#include <stdio.h>
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#include <stdlib.h>
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#define STACK_LEN 10
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/* Obtain a backtrace and print it to stdout. */
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static void print_trace(void)
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{
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void *array[STACK_LEN];
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size_t size;
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char **strings;
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size_t i;
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size = backtrace(array, STACK_LEN);
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strings = backtrace_symbols(array, size);
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switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_CRIT, "Obtained %zd stack frames.\n", size);
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for (i = 0; i < size; i++) {
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switch_log_printf(SWITCH_CHANNEL_LOG_CLEAN, SWITCH_LOG_CRIT, "%s\n", strings[i]);
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}
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free(strings);
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}
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#else
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static void print_trace(void)
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{
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switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_CRIT, "Trace not available =(\n");
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}
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#endif
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static void handle_fatality(int sig)
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{
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switch_thread_id_t thread_id;
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jmp_buf *env;
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if (!sig) return;
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thread_id = switch_thread_self();
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switch_mutex_lock(stack_mutex);
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env = (jmp_buf *) sqlite3HashFind(&stack_table, &thread_id, sizeof(thread_id));
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switch_mutex_unlock(stack_mutex);
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if (thread_id && env) {
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print_trace();
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longjmp(*env, sig);
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} else {
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switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_CRIT, "Caught signal %d for unmapped thread!", sig);
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abort();
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}
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}
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void switch_core_state_machine_init(switch_memory_pool_t *pool)
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{
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if (switch_test_flag((&runtime), SCF_CRASH_PROT)) {
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switch_mutex_init(&stack_mutex, SWITCH_MUTEX_NESTED, pool);
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switch_mutex_lock(stack_mutex);
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sqlite3HashInit(&stack_table, SQLITE_HASH_BINARY, 0);
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switch_mutex_unlock(stack_mutex);
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}
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return;
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}
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#define STATE_MACRO(__STATE, __STATE_STR) do { \
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@@ -329,35 +263,9 @@ SWITCH_DECLARE(void) switch_core_session_run(switch_core_session_t *session)
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const switch_endpoint_interface_t *endpoint_interface;
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const switch_state_handler_table_t *driver_state_handler = NULL;
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const switch_state_handler_table_t *application_state_handler = NULL;
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switch_thread_id_t thread_id;
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jmp_buf env;
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int sig, silly = 0;
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int silly = 0;
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uint32_t new_loops = 60000;
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if (switch_test_flag((&runtime), SCF_CRASH_PROT)) {
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thread_id = switch_thread_self();
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signal(SIGSEGV, handle_fatality);
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signal(SIGFPE, handle_fatality);
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#ifndef WIN32
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signal(SIGBUS, handle_fatality);
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#endif
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if ((sig = setjmp(env)) != 0) {
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switch_event_t *event;
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if (switch_event_create(&event, SWITCH_EVENT_SESSION_CRASH) == SWITCH_STATUS_SUCCESS) {
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switch_channel_event_set_data(session->channel, event);
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switch_event_fire(&event);
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}
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switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_CRIT, "Thread has crashed for channel %s\n", switch_channel_get_name(session->channel));
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switch_channel_hangup(session->channel, SWITCH_CAUSE_CRASH);
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} else {
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switch_mutex_lock(stack_mutex);
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sqlite3HashInsert(&stack_table, &thread_id, sizeof(thread_id), (void *) &env);
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switch_mutex_unlock(stack_mutex);
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}
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}
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/*
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Life of the channel. you have channel and pool in your session
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everywhere you go you use the session to malloc with
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@@ -474,10 +382,6 @@ SWITCH_DECLARE(void) switch_core_session_run(switch_core_session_t *session)
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done:
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switch_mutex_unlock(session->mutex);
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if (switch_test_flag((&runtime), SCF_CRASH_PROT)) {
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sqlite3HashInsert(&stack_table, &thread_id, sizeof(thread_id), NULL);
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//apr_hash_set(stack_table, &thread_id, sizeof(thread_id), NULL);
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}
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session->thread_running = 0;
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}
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