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- use the atomic operations for incrementing the unique int

Browse Source 
- free the string fields allocation if ast_create_channel() failes to open the
  alert pipe
- formatting tweaks


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@40782 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
Russell Bryant
2006-08-21 19:35:28 +00:00
parent 1c182a606a
commit 389c605a67
1 changed files with 21 additions and 12 deletions
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33
main/channel.c
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@@ -95,7 +95,6 @@ struct ast_channel_whisper_buffer {
/*! Prevent new channel allocation if shutting down. */
static int shutting_down = 0;
AST_MUTEX_DEFINE_STATIC(uniquelock);
static int uniqueint = 0;
unsigned long global_fin = 0, global_fout = 0;
@@ -626,7 +625,7 @@ struct ast_channel *ast_channel_alloc(int needqueue)
/* Don't bother initializing the last two FD here, because they
will *always* be set just a few lines down (AST_TIMING_FD,
AST_ALERT_FD). */
for (x=0; x<AST_MAX_FDS - 2; x++)
for (x = 0; x < AST_MAX_FDS - 2; x++)
tmp->fds[x] = -1;
#ifdef HAVE_ZAPTEL
@@ -645,6 +644,7 @@ struct ast_channel *ast_channel_alloc(int needqueue)
if (needqueue) {
if (pipe(tmp->alertpipe)) {
ast_log(LOG_WARNING, "Channel allocation failed: Can't create alert pipe!\n");
ast_string_field_free_all(tmp);
free(tmp);
return NULL;
} else {
@@ -661,27 +661,35 @@ struct ast_channel *ast_channel_alloc(int needqueue)
/* And timing pipe */
tmp->fds[AST_TIMING_FD] = tmp->timingfd;
ast_string_field_set(tmp, name, "**Unknown**");
/* Initial state */
tmp->_state = AST_STATE_DOWN;
tmp->streamid = -1;
tmp->appl = NULL;
tmp->data = NULL;
tmp->fin = global_fin;
tmp->fout = global_fout;
ast_mutex_lock(&uniquelock);
if (ast_strlen_zero(ast_config_AST_SYSTEM_NAME))
ast_string_field_build(tmp, uniqueid, "%li.%d", (long) time(NULL), uniqueint++);
else
ast_string_field_build(tmp, uniqueid, "%s-%li.%d", ast_config_AST_SYSTEM_NAME, (long) time(NULL), uniqueint++);
ast_mutex_unlock(&uniquelock);
if (ast_strlen_zero(ast_config_AST_SYSTEM_NAME)) {
ast_string_field_build(tmp, uniqueid, "%li.%d", (long) time(NULL),
ast_atomic_fetchadd_int(&uniqueint, 1));
} else {
ast_string_field_build(tmp, uniqueid, "%s-%li.%d", ast_config_AST_SYSTEM_NAME,
(long) time(NULL), ast_atomic_fetchadd_int(&uniqueint, 1));
}
headp = &tmp->varshead;
ast_mutex_init(&tmp->lock);
AST_LIST_HEAD_INIT_NOLOCK(headp);
ast_mutex_init(&tmp->lock);
AST_LIST_HEAD_INIT_NOLOCK(&tmp->datastores);
strcpy(tmp->context, "default");
ast_string_field_set(tmp, language, defaultlanguage);
strcpy(tmp->exten, "s");
tmp->priority = 1;
ast_string_field_set(tmp, language, defaultlanguage);
tmp->amaflags = ast_default_amaflags;
ast_string_field_set(tmp, accountcode, ast_default_accountcode);
@@ -690,6 +698,7 @@ struct ast_channel *ast_channel_alloc(int needqueue)
AST_LIST_LOCK(&channels);
AST_LIST_INSERT_HEAD(&channels, tmp, chan_list);
AST_LIST_UNLOCK(&channels);
return tmp;
}