main/file.c: Limit media cache usage to remote files.
When testing for the existance of a file, the media cache is searched even if the file has no chance of being in it. This can cause performance issues as the media cache size increases. As a result, calls to applications like Read and Playback using local files must scan through the media cache before playing. Under load and with a large cache, this can delay the playback of those files. This patch updates the function that checks for the existance of a file to only consult the media cache database if the requested file is a remote path. It introduces a new is_remote_path() function in main/file.c. ASTERISK-28625 #close Reported-by: kevin@phoneburner.com Change-Id: If91137493732d9034dafa381c081c69274a7dcc9
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@ -640,6 +640,11 @@ static int is_absolute_path(const char *filename)
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return filename[0] == '/';
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}
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static int is_remote_path(const char *filename)
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{
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return strstr(filename, "://") ? 1 : 0;
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}
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/*!
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* \brief test if a file exists for a given format.
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* \note result_cap is OPTIONAL
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@ -653,7 +658,7 @@ static int fileexists_test(const char *filename, const char *fmt, const char *la
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return 0;
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}
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if (!ast_media_cache_retrieve(filename, NULL, buf, buflen)) {
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if (is_remote_path(filename) && !ast_media_cache_retrieve(filename, NULL, buf, buflen)) {
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return filehelper(buf, result_cap, NULL, ACTION_EXISTS);
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}
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