kenmirrors/asterisk
1
0
Fork 0
mirror of https://github.com/asterisk/asterisk.git synced 2025-10-11 07:13:20 +00:00
Code Issues Packages Projects Releases Wiki Activity

Introducing a small upgrade to the ast_sched_xxx facility, to keep it from eating up lots of cpu cycles. See CHANGES. From the team/murf/bug11210 branch.

Browse Source 
git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@114182 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
Steve Murphy
2008-04-16 20:09:39 +00:00
parent e5ea744e1d
commit 2b69ec9a38
3 changed files with 206 additions and 37 deletions
Download Patch File Download Diff File Expand all files Collapse all files

53
include/asterisk/sched.h
View File

@@ -27,6 +27,7 @@
extern "C" {
#endif
/*! \brief Max num of schedule structs
* \note The max number of schedule structs to keep around
* for use. Undefine to disable schedule structure
@@ -64,6 +65,19 @@ extern "C" {
id = -1; \
} while (0);
#define AST_SCHED_DEL_UNREF(sched, id, refcall) \
do { \
int _count = 0; \
while (id > -1 && ast_sched_del(sched, id) && ++_count < 10) { \
usleep(1); \
} \
if (_count == 10) \
ast_log(LOG_WARNING, "Unable to cancel schedule ID %d. This is probably a bug (%s: %s, line %d).\n", id, __FILE__, __PRETTY_FUNCTION__, __LINE__); \
if (id > -1) \
refcall; \
id = -1; \
} while (0);
#define AST_SCHED_REPLACE_VARIABLE(id, sched, when, callback, data, variable) \
do { \
int _count = 0; \
@@ -78,6 +92,27 @@ extern "C" {
#define AST_SCHED_REPLACE(id, sched, when, callback, data) \
AST_SCHED_REPLACE_VARIABLE(id, sched, when, callback, data, 0)
#define AST_SCHED_REPLACE_VARIABLE_UNREF(id, sched, when, callback, data, variable, unrefcall, addfailcall, refcall) \
do { \
int _count = 0, _res=1; \
void *_data = (void *)ast_sched_find_data(sched, id); \
while (id > -1 && (_res = ast_sched_del(sched, id) && _count++ < 10)) { \
usleep(1); \
} \
if (!_res && _data) \
unrefcall; /* should ref _data! */ \
if (_count == 10) \
ast_log(LOG_WARNING, "Unable to cancel schedule ID %d. This is probably a bug (%s: %s, line %d).\n", id, __FILE__, __PRETTY_FUNCTION__, __LINE__); \
id = ast_sched_add_variable(sched, when, callback, data, variable); \
if (id == -1) \
addfailcall; \
else \
refcall; \
} while (0);
#define AST_SCHED_REPLACE_UNREF(id, sched, when, callback, data, unrefcall, addfailcall, refcall) \
AST_SCHED_REPLACE_VARIABLE_UNREF(id, sched, when, callback, data, 0, unrefcall, addfailcall, refcall)
struct sched_context;
/*! \brief New schedule context
@@ -101,6 +136,14 @@ void sched_context_destroy(struct sched_context *c);
typedef int (*ast_sched_cb)(const void *data);
#define AST_SCHED_CB(a) ((ast_sched_cb)(a))
struct ast_cb_names
{
int numassocs;
char *list[10];
ast_sched_cb cblist[10];
};
char *ast_sched_report(struct sched_context *con, char *buf, int bufsiz, struct ast_cb_names *cbnames);
/*! \brief Adds a scheduled event
* Schedule an event to take place at some point in the future. callback
* will be called with data as the argument, when milliseconds into the
@@ -155,6 +198,15 @@ int ast_sched_add_variable(struct sched_context *con, int when, ast_sched_cb cal
*/
int ast_sched_replace_variable(int old_id, struct sched_context *con, int when, ast_sched_cb callback, const void *data, int variable);
/*! \brief Find a sched structure and return the data field associated with it.
* \param con scheduling context in which to search fro the matching id
* \param id ID of the scheduled item to find
* \return the data field from the matching sched struct if found; else return NULL if not found.
*/
const void *ast_sched_find_data(struct sched_context *con, int id);
/*! \brief Deletes a scheduled event
* Remove this event from being run. A procedure should not remove its own
* event, but return 0 instead. In most cases, you should not call this
@@ -164,6 +216,7 @@ int ast_sched_replace_variable(int old_id, struct sched_context *con, int when,
* \param id ID of the scheduled item to delete
* \return Returns 0 on success, -1 on failure
*/
int ast_sched_del(struct sched_context *con, int id);
/*! \brief Determines number of seconds until the next outstanding event to take place