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git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@53200 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
Olle Johansson
2007-02-05 21:55:01 +00:00
parent 4553ab9eab
commit f303a4db46
1 changed files with 26 additions and 31 deletions
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51
main/io.c
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@@ -44,13 +44,13 @@ ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
#define DEBUG(a) #define DEBUG(a)
#endif #endif
/* /*! \brief
* Kept for each file descriptor * Kept for each file descriptor
*/ */
struct io_rec { struct io_rec {
ast_io_cb callback; /* What is to be called */ ast_io_cb callback; /*!< What is to be called */
void *data; /* Data to be passed */ void *data; /*!< Data to be passed */
int *id; /* ID number */ int *id; /*!< ID number */
}; };
/* These two arrays are keyed with /* These two arrays are keyed with
@@ -62,21 +62,15 @@ struct io_rec {
#define GROW_SHRINK_SIZE 512 #define GROW_SHRINK_SIZE 512
/* Global variables are now in a struct in order to be /*!<21>\brief Global IO variables are now in a struct in order to be
made threadsafe */ made threadsafe */
struct io_context { struct io_context {
/* Poll structure */ struct pollfd *fds; /*!< Poll structure */
struct pollfd *fds; struct io_rec *ior; /*!< Associated I/O records */
/* Associated I/O records */ unsigned int fdcnt; /*!< First available fd */
struct io_rec *ior; unsigned int maxfdcnt; /*!< Maximum available fd */
/* First available fd */ int current_ioc; /*!< Currently used io callback */
unsigned int fdcnt; int needshrink; /*!< Whether something has been deleted */
/* Maximum available fd */
unsigned int maxfdcnt;
/* Currently used io callback */
int current_ioc;
/* Whether something has been deleted */
int needshrink;
}; };
struct io_context *io_context_create(void) struct io_context *io_context_create(void)
@@ -112,12 +106,12 @@ void io_context_destroy(struct io_context *ioc)
free(ioc); free(ioc);
} }
/*! \brief
* Grow the size of our arrays.
* \return 0 on success or -1 on failure
*/
static int io_grow(struct io_context *ioc) static int io_grow(struct io_context *ioc)
{ {
/*
* Grow the size of our arrays. Return 0 on success or
* -1 on failure
*/
void *tmp; void *tmp;
DEBUG(ast_log(LOG_DEBUG, "io_grow()\n")); DEBUG(ast_log(LOG_DEBUG, "io_grow()\n"));
ioc->maxfdcnt += GROW_SHRINK_SIZE; ioc->maxfdcnt += GROW_SHRINK_SIZE;
@@ -146,13 +140,14 @@ static int io_grow(struct io_context *ioc)
return 0; return 0;
} }
int *ast_io_add(struct io_context *ioc, int fd, ast_io_cb callback, short events, void *data) /*! \brief
{
/*
* Add a new I/O entry for this file descriptor * Add a new I/O entry for this file descriptor
* with the given event mask, to call callback with * with the given event mask, to call callback with
* data as an argument. Returns NULL on failure. * data as an argument.
* \return Returns NULL on failure.
*/ */
int *ast_io_add(struct io_context *ioc, int fd, ast_io_cb callback, short events, void *data)
{
int *ret; int *ret;
DEBUG(ast_log(LOG_DEBUG, "ast_io_add()\n")); DEBUG(ast_log(LOG_DEBUG, "ast_io_add()\n"));
if (ioc->fdcnt >= ioc->maxfdcnt) { if (ioc->fdcnt >= ioc->maxfdcnt) {
@@ -252,13 +247,13 @@ int ast_io_remove(struct io_context *ioc, int *_id)
return -1; return -1;
} }
int ast_io_wait(struct io_context *ioc, int howlong) /*! \brief
{
/*
* Make the poll call, and call * Make the poll call, and call
* the callbacks for anything that needs * the callbacks for anything that needs
* to be handled * to be handled
*/ */
int ast_io_wait(struct io_context *ioc, int howlong)
{
int res; int res;
int x; int x;
int origcnt; int origcnt;