........ r369001 | kpfleming | 2012-06-15 10:56:08 -0500 (Fri, 15 Jun 2012) | 11 lines Add support-level indications to many more source files. Since we now have tools that scan through the source tree looking for files with specific support levels, we need to ensure that every file that is a component of a 'core' or 'extended' module (or the main Asterisk binary) is explicitly marked with its support level. This patch adds support-level indications to many more source files in tree, but avoids adding them to third-party libraries that are included in the tree and to source files that don't end up involved in Asterisk itself. ........ r369002 | kpfleming | 2012-06-15 10:57:14 -0500 (Fri, 15 Jun 2012) | 3 lines Add a script to enable finding source files without support-levels defined. ........ Merged revisions 369001-369002 from http://svn.asterisk.org/svn/asterisk/branches/1.8 ........ Merged revisions 369005 from http://svn.asterisk.org/svn/asterisk/branches/10 git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@369013 65c4cc65-6c06-0410-ace0-fbb531ad65f3
289 lines
7.3 KiB
C
289 lines
7.3 KiB
C
/*
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* Asterisk -- An open source telephony toolkit.
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*
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* Copyright (C) 2009, Digium, Inc.
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*
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* Tilghman Lesher <tlesher@digium.com>
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*
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* See http://www.asterisk.org for more information about
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* the Asterisk project. Please do not directly contact
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* any of the maintainers of this project for assistance;
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* the project provides a web site, mailing lists and IRC
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* channels for your use.
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*
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* This program is free software, distributed under the terms of
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* the GNU General Public License Version 2. See the LICENSE file
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* at the top of the source tree.
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*/
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/*! \file
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*
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* \brief Debugging routines for file descriptor leaks
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*
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* \author Tilghman Lesher <tlesher@digium.com>
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*/
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/*** MODULEINFO
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<support_level>core</support_level>
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***/
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#include "asterisk.h"
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#ifdef DEBUG_FD_LEAKS
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ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
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#include <stdio.h>
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#include <string.h>
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#include <stddef.h>
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#include <time.h>
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#include <sys/time.h>
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#include <sys/resource.h>
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#include "asterisk/cli.h"
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#include "asterisk/logger.h"
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#include "asterisk/options.h"
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#include "asterisk/lock.h"
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#include "asterisk/strings.h"
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#include "asterisk/unaligned.h"
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static struct fdleaks {
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char file[40];
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int line;
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char function[25];
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char callname[10];
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char callargs[60];
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unsigned int isopen:1;
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} fdleaks[1024] = { { "", }, };
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#define COPY(dst, src) \
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do { \
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int dlen = sizeof(dst), slen = strlen(src); \
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if (slen + 1 > dlen) { \
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char *slash = strrchr(src, '/'); \
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if (slash) { \
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ast_copy_string(dst, slash + 1, dlen); \
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} else { \
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ast_copy_string(dst, src + slen - dlen + 1, dlen); \
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} \
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} else { \
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ast_copy_string(dst, src, dlen); \
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} \
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} while (0)
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#define STORE_COMMON(offset, name, ...) \
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COPY(fdleaks[offset].file, file); \
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fdleaks[offset].line = line; \
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COPY(fdleaks[offset].function, func); \
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strcpy(fdleaks[offset].callname, name); \
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snprintf(fdleaks[offset].callargs, sizeof(fdleaks[offset].callargs), __VA_ARGS__); \
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fdleaks[offset].isopen = 1;
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#undef open
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int __ast_fdleak_open(const char *file, int line, const char *func, const char *path, int flags, ...)
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{
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int res;
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va_list ap;
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int mode;
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if (flags & O_CREAT) {
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va_start(ap, flags);
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mode = va_arg(ap, int);
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va_end(ap);
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res = open(path, flags, mode);
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if (res > -1 && res < (sizeof(fdleaks) / sizeof(fdleaks[0]))) {
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char sflags[80];
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snprintf(sflags, sizeof(sflags), "O_CREAT%s%s%s%s%s%s%s%s",
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flags & O_APPEND ? "|O_APPEND" : "",
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flags & O_EXCL ? "|O_EXCL" : "",
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flags & O_NONBLOCK ? "|O_NONBLOCK" : "",
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flags & O_TRUNC ? "|O_TRUNC" : "",
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flags & O_RDWR ? "|O_RDWR" : "",
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#if O_RDONLY == 0
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!(flags & (O_WRONLY | O_RDWR)) ? "|O_RDONLY" : "",
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#else
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flags & O_RDONLY ? "|O_RDONLY" : "",
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#endif
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flags & O_WRONLY ? "|O_WRONLY" : "",
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"");
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flags &= ~(O_CREAT | O_APPEND | O_EXCL | O_NONBLOCK | O_TRUNC | O_RDWR | O_RDONLY | O_WRONLY);
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if (flags) {
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STORE_COMMON(res, "open", "\"%s\",%s|%d,%04o", path, sflags, flags, mode);
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} else {
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STORE_COMMON(res, "open", "\"%s\",%s,%04o", path, sflags, mode);
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}
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}
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} else {
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res = open(path, flags);
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if (res > -1 && res < (sizeof(fdleaks) / sizeof(fdleaks[0]))) {
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STORE_COMMON(res, "open", "\"%s\",%d", path, flags);
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}
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}
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return res;
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}
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#undef pipe
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int __ast_fdleak_pipe(int *fds, const char *file, int line, const char *func)
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{
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int i, res = pipe(fds);
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if (res) {
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return res;
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}
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for (i = 0; i < 2; i++) {
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STORE_COMMON(fds[i], "pipe", "{%d,%d}", fds[0], fds[1]);
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}
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return 0;
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}
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#undef socket
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int __ast_fdleak_socket(int domain, int type, int protocol, const char *file, int line, const char *func)
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{
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char sdomain[20], stype[20], *sproto = NULL;
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struct protoent *pe;
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int res = socket(domain, type, protocol);
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if (res < 0 || res > 1023) {
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return res;
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}
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if ((pe = getprotobynumber(protocol))) {
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sproto = pe->p_name;
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}
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if (domain == PF_UNIX) {
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ast_copy_string(sdomain, "PF_UNIX", sizeof(sdomain));
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} else if (domain == PF_INET) {
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ast_copy_string(sdomain, "PF_INET", sizeof(sdomain));
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} else {
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snprintf(sdomain, sizeof(sdomain), "%d", domain);
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}
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if (type == SOCK_DGRAM) {
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ast_copy_string(stype, "SOCK_DGRAM", sizeof(stype));
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if (protocol == 0) {
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sproto = "udp";
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}
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} else if (type == SOCK_STREAM) {
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ast_copy_string(stype, "SOCK_STREAM", sizeof(stype));
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if (protocol == 0) {
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sproto = "tcp";
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}
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} else {
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snprintf(stype, sizeof(stype), "%d", type);
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}
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if (sproto) {
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STORE_COMMON(res, "socket", "%s,%s,\"%s\"", sdomain, stype, sproto);
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} else {
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STORE_COMMON(res, "socket", "%s,%s,\"%d\"", sdomain, stype, protocol);
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}
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return res;
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}
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#undef close
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int __ast_fdleak_close(int fd)
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{
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int res = close(fd);
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if (!res && fd > -1 && fd < 1024) {
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fdleaks[fd].isopen = 0;
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}
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return res;
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}
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#undef fopen
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FILE *__ast_fdleak_fopen(const char *path, const char *mode, const char *file, int line, const char *func)
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{
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FILE *res = fopen(path, mode);
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int fd;
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if (!res) {
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return res;
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}
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fd = fileno(res);
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STORE_COMMON(fd, "fopen", "\"%s\",\"%s\"", path, mode);
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return res;
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}
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#undef fclose
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int __ast_fdleak_fclose(FILE *ptr)
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{
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int fd, res;
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if (!ptr) {
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return fclose(ptr);
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}
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fd = fileno(ptr);
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if ((res = fclose(ptr)) || fd < 0 || fd > 1023) {
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return res;
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}
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fdleaks[fd].isopen = 0;
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return res;
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}
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#undef dup2
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int __ast_fdleak_dup2(int oldfd, int newfd, const char *file, int line, const char *func)
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{
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int res = dup2(oldfd, newfd);
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if (res < 0 || res > 1023) {
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return res;
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}
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STORE_COMMON(res, "dup2", "%d,%d", oldfd, newfd);
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return res;
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}
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#undef dup
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int __ast_fdleak_dup(int oldfd, const char *file, int line, const char *func)
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{
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int res = dup(oldfd);
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if (res < 0 || res > 1023) {
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return res;
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}
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STORE_COMMON(res, "dup2", "%d", oldfd);
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return res;
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}
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static char *handle_show_fd(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)
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{
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int i;
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char line[24];
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struct rlimit rl;
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switch (cmd) {
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case CLI_INIT:
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e->command = "core show fd";
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e->usage =
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"Usage: core show fd\n"
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" List all file descriptors currently in use and where\n"
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" each was opened, and with what command.\n";
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return NULL;
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case CLI_GENERATE:
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return NULL;
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}
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getrlimit(RLIMIT_FSIZE, &rl);
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if (rl.rlim_cur == RLIM_INFINITY || rl.rlim_max == RLIM_INFINITY) {
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ast_copy_string(line, "unlimited", sizeof(line));
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} else {
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snprintf(line, sizeof(line), "%d/%d", (int) rl.rlim_cur, (int) rl.rlim_max);
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}
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ast_cli(a->fd, "Current maxfiles: %s\n", line);
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for (i = 0; i < 1024; i++) {
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if (fdleaks[i].isopen) {
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snprintf(line, sizeof(line), "%d", fdleaks[i].line);
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ast_cli(a->fd, "%5d %15s:%-7.7s (%-25s): %s(%s)\n", i, fdleaks[i].file, line, fdleaks[i].function, fdleaks[i].callname, fdleaks[i].callargs);
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}
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}
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return CLI_SUCCESS;
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}
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static struct ast_cli_entry cli_show_fd = AST_CLI_DEFINE(handle_show_fd, "Show open file descriptors");
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int ast_fd_init(void)
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{
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return ast_cli_register(&cli_show_fd);
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}
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#else /* !defined(DEBUG_FD_LEAKS) */
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int ast_fd_init(void)
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{
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return 0;
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}
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#endif /* defined(DEBUG_FD_LEAKS) */
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