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https://github.com/servalproject/serval-dna.git
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27a0a6eeb5
Replaces (const char *file, unsigned int line, const char *function) arguments to all logging functions, simplifies malloc/free tracking code in overlay_buffer.c and Rhizome manifest alloc/free tracking in rhizome_bundle.c. Use __HERE__ macro instead of (__FILE__, __LINE__, __FUNCTION__) everywhere. Special __NOWHERE__ macro is equivalent to (NULL, 0, NULL). Declare net.c functions in new "net.h" header, so log.c doesn't have to pull in the entire "serval.h" just to use write_str(). Facilitates progress on issue #2.
127 lines
3.7 KiB
C
127 lines
3.7 KiB
C
/*
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Serval Distributed Numbering Architecture (DNA)
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Copyright (C) 2012 Serval Project Inc.
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#include <unistd.h>
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#include <errno.h>
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#include <fcntl.h>
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#include "net.h"
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int _set_nonblock(int fd, struct __sourceloc where)
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{
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int flags;
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if ((flags = fcntl(fd, F_GETFL, NULL)) == -1) {
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logMessage_perror(LOG_LEVEL_ERROR, where, "set_nonblock: fcntl(%d,F_GETFL,NULL)", fd);
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return -1;
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}
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if (fcntl(fd, F_SETFL, flags | O_NONBLOCK) == -1) {
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logMessage_perror(LOG_LEVEL_ERROR, where, "set_nonblock: fcntl(%d,F_SETFL,0x%x|O_NONBLOCK)", fd, flags);
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return -1;
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}
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return 0;
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}
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int _set_block(int fd, struct __sourceloc where)
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{
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int flags;
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if ((flags = fcntl(fd, F_GETFL, NULL)) == -1) {
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logMessage_perror(LOG_LEVEL_ERROR, where, "set_block: fcntl(%d,F_GETFL,NULL)", fd);
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return -1;
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}
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if (fcntl(fd, F_SETFL, flags & ~O_NONBLOCK) == -1) {
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logMessage_perror(LOG_LEVEL_ERROR, where, "set_block: fcntl(%d,F_SETFL,0x%x&~O_NONBLOCK)", fd, flags);
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return -1;
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}
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return 0;
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}
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ssize_t _read_nonblock(int fd, void *buf, size_t len, struct __sourceloc where)
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{
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ssize_t nread = read(fd, buf, len);
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if (nread == -1) {
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switch (errno) {
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case EINTR:
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case EAGAIN:
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#if defined(EWOULDBLOCK) && EWOULDBLOCK != EAGAIN
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case EWOULDBLOCK:
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#endif
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return 0;
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}
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logMessage_perror(LOG_LEVEL_ERROR, where, "read_nonblock: read(%d,%p,%lu)",
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fd, buf, (unsigned long)len);
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return -1;
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}
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return nread;
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}
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ssize_t _write_all(int fd, const void *buf, size_t len, struct __sourceloc where)
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{
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ssize_t written = write(fd, buf, len);
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if (written == -1) {
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logMessage_perror(LOG_LEVEL_ERROR, where, "write_all: write(%d,%p %s,%lu)",
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fd, buf, alloca_toprint(30, buf, len), (unsigned long)len);
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return -1;
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}
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if (written != len) {
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logMessage(LOG_LEVEL_ERROR, where, "write_all: write(%d,%p %s,%lu) returned %ld",
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fd, buf, alloca_toprint(30, buf, len), (unsigned long)len, (long)written);
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return -1;
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}
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return written;
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}
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ssize_t _write_nonblock(int fd, const void *buf, size_t len, struct __sourceloc where)
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{
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ssize_t written = write(fd, buf, len);
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if (written == -1) {
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switch (errno) {
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case EINTR:
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case EAGAIN:
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#if defined(EWOULDBLOCK) && EWOULDBLOCK != EAGAIN
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case EWOULDBLOCK:
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#endif
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return 0;
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}
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logMessage_perror(LOG_LEVEL_ERROR, where, "write_nonblock: write(%d,%p %s,%lu)",
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fd, buf, alloca_toprint(30, buf, len), (unsigned long)len);
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return -1;
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}
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return written;
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}
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ssize_t _write_all_nonblock(int fd, const void *buf, size_t len, struct __sourceloc where)
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{
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ssize_t written = _write_nonblock(fd, buf, len, where);
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if (written != -1 && written != len) {
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logMessage(LOG_LEVEL_ERROR, where, "write_all_nonblock: write(%d,%p %s,%lu) returned %ld",
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fd, buf, alloca_toprint(30, buf, len), (unsigned long)len, (long)written);
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return -1;
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}
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return written;
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}
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ssize_t _write_str(int fd, const char *str, struct __sourceloc where)
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{
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return _write_all(fd, str, strlen(str), where);
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}
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ssize_t _write_str_nonblock(int fd, const char *str, struct __sourceloc where)
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{
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return _write_all_nonblock(fd, str, strlen(str), where);
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}
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