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4a58261694f1538a419dd869f87ea4590171a9f2
asterisk/main/format_cache.c
Matt Jordan 4a58261694 git migration: Refactor the ASTERISK_FILE_VERSION macro 
Git does not support the ability to replace a token with a version
string during check-in. While it does have support for replacing a
token on clone, this is somewhat sub-optimal: the token is replaced
with the object hash, which is not particularly easy for human
consumption. What's more, in practice, the source file version was often
not terribly useful. Generally, when triaging bugs, the overall version
of Asterisk is far more useful than an individual SVN version of a file. As a
result, this patch removes Asterisk's support for showing source file
versions.

Specifically, it does the following:

* Rename ASTERISK_FILE_VERSION macro to ASTERISK_REGISTER_FILE, and
  remove passing the version in with the macro. Other facilities
  than 'core show file version' make use of the file names, such as
  setting a debug level only on a specific file. As such, the act of
  registering source files with the Asterisk core still has use. The
  macro rename now reflects the new macro purpose.

* main/asterisk:
  - Refactor the file_version structure to reflect that it no longer
    tracks a version field.
  - Remove the "core show file version" CLI command. Without the file
    version, it is no longer useful.
  - Remove the ast_file_version_find function. The file version is no
    longer tracked.
  - Rename ast_register_file_version/ast_unregister_file_version to
    ast_register_file/ast_unregister_file, respectively.

* main/manager: Remove value from the Version key of the ModuleCheck
  Action. The actual key itself has not been removed, as doing so would
  absolutely constitute a backwards incompatible change. However, since
  the file version is no longer tracked, there is no need to attempt to
  include it in the Version key.

* UPGRADE: Add notes for:
  - Modification to the ModuleCheck AMI Action
  - Removal of the "core show file version" CLI command

Change-Id: I6cf0ff280e1668bf4957dc21f32a5ff43444a40e
2015-04-13 03:48:57 -04:00

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/*
* Asterisk -- An open source telephony toolkit.
*
* Copyright (C) 2014, Digium, Inc.
*
* Joshua Colp <jcolp@digium.com>
*
* See http://www.asterisk.org for more information about
* the Asterisk project. Please do not directly contact
* any of the maintainers of this project for assistance;
* the project provides a web site, mailing lists and IRC
* channels for your use.
*
* This program is free software, distributed under the terms of
* the GNU General Public License Version 2. See the LICENSE file
* at the top of the source tree.
*/
/*! \file
*
* \brief Media Format Cache API
*
* \author Joshua Colp <jcolp@digium.com>
*/
/*** MODULEINFO
<support_level>core</support_level>
***/
#include "asterisk.h"
ASTERISK_REGISTER_FILE()
#include "asterisk/logger.h"
#include "asterisk/format.h"
#include "asterisk/format_cache.h"
#include "asterisk/astobj2.h"
#include "asterisk/strings.h"
/*!
* \brief Built-in cached signed linear 8kHz format.
*/
struct ast_format *ast_format_slin;
/*!
* \brief Built-in cached signed linear 12kHz format.
*/
struct ast_format *ast_format_slin12;
/*!
* \brief Built-in cached signed linear 16kHz format.
*/
struct ast_format *ast_format_slin16;
/*!
* \brief Built-in cached signed linear 24kHz format.
*/
struct ast_format *ast_format_slin24;
/*!
* \brief Built-in cached signed linear 32kHz format.
*/
struct ast_format *ast_format_slin32;
/*!
* \brief Built-in cached signed linear 44kHz format.
*/
struct ast_format *ast_format_slin44;
/*!
* \brief Built-in cached signed linear 48kHz format.
*/
struct ast_format *ast_format_slin48;
/*!
* \brief Built-in cached signed linear 96kHz format.
*/
struct ast_format *ast_format_slin96;
/*!
* \brief Built-in cached signed linear 192kHz format.
*/
struct ast_format *ast_format_slin192;
/*!
* \brief Built-in cached ulaw format.
*/
struct ast_format *ast_format_ulaw;
/*!
* \brief Built-in cached alaw format.
*/
struct ast_format *ast_format_alaw;
/*!
* \brief Built-in cached testlaw format.
*/
struct ast_format *ast_format_testlaw;
/*!
* \brief Built-in cached gsm format.
*/
struct ast_format *ast_format_gsm;
/*!
* \brief Built-in cached adpcm format.
*/
struct ast_format *ast_format_adpcm;
/*!
* \brief Built-in cached g722 format.
*/
struct ast_format *ast_format_g722;
/*!
* \brief Built-in cached g726 format.
*/
struct ast_format *ast_format_g726;
/*!
* \brief Built-in cached g726-aal2 format.
*/
struct ast_format *ast_format_g726_aal2;
/*!
* \brief Built-in cached ilbc format.
*/
struct ast_format *ast_format_ilbc;
/*!
* \brief Built-in cached ilbc format.
*/
struct ast_format *ast_format_lpc10;
/*!
* \brief Built-in cached speex format.
*/
struct ast_format *ast_format_speex;
/*!
* \brief Built-in cached speex at 16kHz format.
*/
struct ast_format *ast_format_speex16;
/*!
* \brief Built-in cached speex at 32kHz format.
*/
struct ast_format *ast_format_speex32;
/*!
* \brief Built-in cached g723.1 format.
*/
struct ast_format *ast_format_g723;
/*!
* \brief Built-in cached g729 format.
*/
struct ast_format *ast_format_g729;
/*!
* \brief Built-in cached g719 format.
*/
struct ast_format *ast_format_g719;
/*!
* \brief Built-in cached h261 format.
*/
struct ast_format *ast_format_h261;
/*!
* \brief Built-in cached h263 format.
*/
struct ast_format *ast_format_h263;
/*!
* \brief Built-in cached h263 plus format.
*/
struct ast_format *ast_format_h263p;
/*!
* \brief Built-in cached h264 format.
*/
struct ast_format *ast_format_h264;
/*!
* \brief Built-in cached mp4 format.
*/
struct ast_format *ast_format_mp4;
/*!
* \brief Built-in cached vp8 format.
*/
struct ast_format *ast_format_vp8;
/*!
* \brief Built-in cached jpeg format.
*/
struct ast_format *ast_format_jpeg;
/*!
* \brief Built-in cached png format.
*/
struct ast_format *ast_format_png;
/*!
* \brief Built-in cached siren14 format.
*/
struct ast_format *ast_format_siren14;
/*!
* \brief Built-in cached siren7 format.
*/
struct ast_format *ast_format_siren7;
/*!
* \brief Built-in cached opus format.
*/
struct ast_format *ast_format_opus;
/*!
* \brief Built-in cached t140 format.
*/
struct ast_format *ast_format_t140;
/*!
* \brief Built-in cached t140 red format.
*/
struct ast_format *ast_format_t140_red;
/*!
* \brief Built-in "null" format.
*/
struct ast_format *ast_format_none;
/*! \brief Number of buckets to use for the media format cache (should be prime for performance reasons) */
#define CACHE_BUCKETS 53
/*! \brief Cached formats */
static struct ao2_container *formats;
static int format_hash_cb(const void *obj, int flags)
{
const struct ast_format *format;
const char *key;
switch (flags & OBJ_SEARCH_MASK) {
case OBJ_SEARCH_KEY:
key = obj;
return ast_str_case_hash(key);
case OBJ_SEARCH_OBJECT:
format = obj;
return ast_str_case_hash(ast_format_get_name(format));
default:
/* Hash can only work on something with a full key. */
ast_assert(0);
return 0;
}
}
static int format_cmp_cb(void *obj, void *arg, int flags)
{
const struct ast_format *left = obj;
const struct ast_format *right = arg;
const char *right_key = arg;
int cmp;
switch (flags & OBJ_SEARCH_MASK) {
case OBJ_SEARCH_OBJECT:
right_key = ast_format_get_name(right);
/* Fall through */
case OBJ_SEARCH_KEY:
cmp = strcasecmp(ast_format_get_name(left), right_key);
break;
case OBJ_SEARCH_PARTIAL_KEY:
cmp = strncasecmp(ast_format_get_name(left), right_key, strlen(right_key));
break;
default:
ast_assert(0);
cmp = 0;
break;
}
if (cmp) {
return 0;
}
return CMP_MATCH;
}
/*! \brief Function called when the process is shutting down */
static void format_cache_shutdown(void)
{
ao2_cleanup(formats);
formats = NULL;
ao2_replace(ast_format_g723, NULL);
ao2_replace(ast_format_ulaw, NULL);
ao2_replace(ast_format_alaw, NULL);
ao2_replace(ast_format_gsm, NULL);
ao2_replace(ast_format_g726, NULL);
ao2_replace(ast_format_g726_aal2, NULL);
ao2_replace(ast_format_adpcm, NULL);
ao2_replace(ast_format_slin, NULL);
ao2_replace(ast_format_slin12, NULL);
ao2_replace(ast_format_slin16, NULL);
ao2_replace(ast_format_slin24, NULL);
ao2_replace(ast_format_slin32, NULL);
ao2_replace(ast_format_slin44, NULL);
ao2_replace(ast_format_slin48, NULL);
ao2_replace(ast_format_slin96, NULL);
ao2_replace(ast_format_slin192, NULL);
ao2_replace(ast_format_lpc10, NULL);
ao2_replace(ast_format_g729, NULL);
ao2_replace(ast_format_speex, NULL);
ao2_replace(ast_format_speex16, NULL);
ao2_replace(ast_format_speex32, NULL);
ao2_replace(ast_format_ilbc, NULL);
ao2_replace(ast_format_g722, NULL);
ao2_replace(ast_format_siren7, NULL);
ao2_replace(ast_format_siren14, NULL);
ao2_replace(ast_format_testlaw, NULL);
ao2_replace(ast_format_g719, NULL);
ao2_replace(ast_format_opus, NULL);
ao2_replace(ast_format_jpeg, NULL);
ao2_replace(ast_format_png, NULL);
ao2_replace(ast_format_h261, NULL);
ao2_replace(ast_format_h263, NULL);
ao2_replace(ast_format_h263p, NULL);
ao2_replace(ast_format_h264, NULL);
ao2_replace(ast_format_mp4, NULL);
ao2_replace(ast_format_vp8, NULL);
ao2_replace(ast_format_t140_red, NULL);
ao2_replace(ast_format_t140, NULL);
ao2_replace(ast_format_none, NULL);
}
int ast_format_cache_init(void)
{
formats = ao2_container_alloc_options(AO2_ALLOC_OPT_LOCK_RWLOCK, CACHE_BUCKETS,
format_hash_cb, format_cmp_cb);
if (!formats) {
return -1;
}
ast_register_cleanup(format_cache_shutdown);
return 0;
}
static void set_cached_format(const char *name, struct ast_format *format)
{
if (!strcmp(name, "g723")) {
ao2_replace(ast_format_g723, format);
} else if (!strcmp(name, "ulaw")) {
ao2_replace(ast_format_ulaw, format);
} else if (!strcmp(name, "alaw")) {
ao2_replace(ast_format_alaw, format);
} else if (!strcmp(name, "gsm")) {
ao2_replace(ast_format_gsm, format);
} else if (!strcmp(name, "g726")) {
ao2_replace(ast_format_g726, format);
} else if (!strcmp(name, "g726aal2")) {
ao2_replace(ast_format_g726_aal2, format);
} else if (!strcmp(name, "adpcm")) {
ao2_replace(ast_format_adpcm, format);
} else if (!strcmp(name, "slin")) {
ao2_replace(ast_format_slin, format);
} else if (!strcmp(name, "slin12")) {
ao2_replace(ast_format_slin12, format);
} else if (!strcmp(name, "slin16")) {
ao2_replace(ast_format_slin16, format);
} else if (!strcmp(name, "slin24")) {
ao2_replace(ast_format_slin24, format);
} else if (!strcmp(name, "slin32")) {
ao2_replace(ast_format_slin32, format);
} else if (!strcmp(name, "slin44")) {
ao2_replace(ast_format_slin44, format);
} else if (!strcmp(name, "slin48")) {
ao2_replace(ast_format_slin48, format);
} else if (!strcmp(name, "slin96")) {
ao2_replace(ast_format_slin96, format);
} else if (!strcmp(name, "slin192")) {
ao2_replace(ast_format_slin192, format);
} else if (!strcmp(name, "lpc10")) {
ao2_replace(ast_format_lpc10, format);
} else if (!strcmp(name, "g729")) {
ao2_replace(ast_format_g729, format);
} else if (!strcmp(name, "speex")) {
ao2_replace(ast_format_speex, format);
} else if (!strcmp(name, "speex16")) {
ao2_replace(ast_format_speex16, format);
} else if (!strcmp(name, "speex32")) {
ao2_replace(ast_format_speex32, format);
} else if (!strcmp(name, "ilbc")) {
ao2_replace(ast_format_ilbc, format);
} else if (!strcmp(name, "g722")) {
ao2_replace(ast_format_g722, format);
} else if (!strcmp(name, "siren7")) {
ao2_replace(ast_format_siren7, format);
} else if (!strcmp(name, "siren14")) {
ao2_replace(ast_format_siren14, format);
} else if (!strcmp(name, "testlaw")) {
ao2_replace(ast_format_testlaw, format);
} else if (!strcmp(name, "g719")) {
ao2_replace(ast_format_g719, format);
} else if (!strcmp(name, "opus")) {
ao2_replace(ast_format_opus, format);
} else if (!strcmp(name, "jpeg")) {
ao2_replace(ast_format_jpeg, format);
} else if (!strcmp(name, "png")) {
ao2_replace(ast_format_png, format);
} else if (!strcmp(name, "h261")) {
ao2_replace(ast_format_h261, format);
} else if (!strcmp(name, "h263")) {
ao2_replace(ast_format_h263, format);
} else if (!strcmp(name, "h263p")) {
ao2_replace(ast_format_h263p, format);
} else if (!strcmp(name, "h264")) {
ao2_replace(ast_format_h264, format);
} else if (!strcmp(name, "mpeg4")) {
ao2_replace(ast_format_mp4, format);
} else if (!strcmp(name, "vp8")) {
ao2_replace(ast_format_vp8, format);
} else if (!strcmp(name, "red")) {
ao2_replace(ast_format_t140_red, format);
} else if (!strcmp(name, "t140")) {
ao2_replace(ast_format_t140, format);
} else if (!strcmp(name, "none")) {
ao2_replace(ast_format_none, format);
}
}
int ast_format_cache_set(struct ast_format *format)
{
SCOPED_AO2WRLOCK(lock, formats);
struct ast_format *old_format;
ast_assert(format != NULL);
if (ast_strlen_zero(ast_format_get_name(format))) {
return -1;
}
old_format = ao2_find(formats, ast_format_get_name(format), OBJ_SEARCH_KEY | OBJ_NOLOCK);
if (old_format) {
ao2_unlink_flags(formats, old_format, OBJ_NOLOCK);
}
ao2_link_flags(formats, format, OBJ_NOLOCK);
set_cached_format(ast_format_get_name(format), format);
ast_verb(2, "%s cached format with name '%s'\n",
old_format ? "Updated" : "Created",
ast_format_get_name(format));
ao2_cleanup(old_format);
return 0;
}
struct ast_format *__ast_format_cache_get(const char *name)
{
if (ast_strlen_zero(name)) {
return NULL;
}
return ao2_find(formats, name, OBJ_SEARCH_KEY);
}
struct ast_format *__ast_format_cache_get_debug(const char *name, const char *tag, const char *file, int line, const char *func)
{
if (ast_strlen_zero(name)) {
return NULL;
}
return __ao2_find_debug(formats, name, OBJ_SEARCH_KEY, S_OR(tag, "ast_format_cache_get"), file, line, func);
}
struct ast_format *ast_format_cache_get_slin_by_rate(unsigned int rate)
{
if (rate >= 192000) {
return ast_format_slin192;
} else if (rate >= 96000) {
return ast_format_slin96;
} else if (rate >= 48000) {
return ast_format_slin48;
} else if (rate >= 44100) {
return ast_format_slin44;
} else if (rate >= 32000) {
return ast_format_slin32;
} else if (rate >= 24000) {
return ast_format_slin24;
} else if (rate >= 16000) {
return ast_format_slin16;
} else if (rate >= 12000) {
return ast_format_slin12;
}
return ast_format_slin;
}
int ast_format_cache_is_slinear(struct ast_format *format)
{
if ((ast_format_cmp(format, ast_format_slin) == AST_FORMAT_CMP_EQUAL)
|| (ast_format_cmp(format, ast_format_slin12) == AST_FORMAT_CMP_EQUAL)
|| (ast_format_cmp(format, ast_format_slin16) == AST_FORMAT_CMP_EQUAL)
|| (ast_format_cmp(format, ast_format_slin24) == AST_FORMAT_CMP_EQUAL)
|| (ast_format_cmp(format, ast_format_slin32) == AST_FORMAT_CMP_EQUAL)
|| (ast_format_cmp(format, ast_format_slin44) == AST_FORMAT_CMP_EQUAL)
|| (ast_format_cmp(format, ast_format_slin48) == AST_FORMAT_CMP_EQUAL)
|| (ast_format_cmp(format, ast_format_slin96) == AST_FORMAT_CMP_EQUAL)
|| (ast_format_cmp(format, ast_format_slin192) == AST_FORMAT_CMP_EQUAL)) {
return 1;
}
return 0;
}
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