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| author | Yang Tse <yangsita@gmail.com> | 2007-02-16 15:04:44 +0000 |
|---|---|---|
| committer | Yang Tse <yangsita@gmail.com> | 2007-02-16 15:04:44 +0000 |
| commit | 69fa44735497e10ca7c49075455da1370b7d7484 (patch) | |
| tree | 35a7749e2b33d5bdcbf755853873e19012781f75 /ares_process.c | |
| parent | 10a035e128165a09d7d7a0958ac5c706bf41a6ab (diff) | |
| download | c-ares-69fa44735497e10ca7c49075455da1370b7d7484.tar.gz c-ares-69fa44735497e10ca7c49075455da1370b7d7484.tar.bz2 c-ares-69fa44735497e10ca7c49075455da1370b7d7484.zip | |
use macros ERRNO, SET_ERRNO(), SOCKERRNO and SET_SOCKERRNO() for errno handling
Diffstat (limited to 'ares_process.c')
| -rw-r--r-- | ares_process.c | 20 |
1 files changed, 7 insertions, 13 deletions
diff --git a/ares_process.c b/ares_process.c index f6669ca..480948e 100644 --- a/ares_process.c +++ b/ares_process.c @@ -59,12 +59,6 @@ #define TRUE 1 #endif -#ifdef USE_WINSOCK -#define GET_ERRNO() WSAGetLastError() -#else -#define GET_ERRNO() errno -#endif - static int try_again(int errnum); static void write_tcp_data(ares_channel channel, fd_set *write_fds, time_t now); @@ -97,7 +91,7 @@ void ares_process(ares_channel channel, fd_set *read_fds, fd_set *write_fds) process_timeouts(channel, now); } -/* Return 1 if the specified errno describes a readiness error, or 0 +/* Return 1 if the specified error number describes a readiness error, or 0 * otherwise. This is mostly for HP-UX, which could return EAGAIN or * EWOULDBLOCK. See this man page * @@ -164,7 +158,7 @@ static void write_tcp_data(ares_channel channel, fd_set *write_fds, time_t now) free(vec); if (wcount < 0) { - if (!try_again(GET_ERRNO())) + if (!try_again(SOCKERRNO)) handle_error(channel, i, now); continue; } @@ -200,7 +194,7 @@ static void write_tcp_data(ares_channel channel, fd_set *write_fds, time_t now) scount = swrite(server->tcp_socket, sendreq->data, sendreq->len); if (scount < 0) { - if (!try_again(GET_ERRNO())) + if (!try_again(SOCKERRNO)) handle_error(channel, i, now); continue; } @@ -253,7 +247,7 @@ static void read_tcp_data(ares_channel channel, fd_set *read_fds, time_t now) 2 - server->tcp_lenbuf_pos); if (count <= 0) { - if (!(count == -1 && try_again(GET_ERRNO()))) + if (!(count == -1 && try_again(SOCKERRNO))) handle_error(channel, i, now); continue; } @@ -280,7 +274,7 @@ static void read_tcp_data(ares_channel channel, fd_set *read_fds, time_t now) server->tcp_length - server->tcp_buffer_pos); if (count <= 0) { - if (!(count == -1 && try_again(GET_ERRNO()))) + if (!(count == -1 && try_again(SOCKERRNO))) handle_error(channel, i, now); continue; } @@ -322,7 +316,7 @@ static void read_udp_packets(ares_channel channel, fd_set *read_fds, continue; count = sread(server->udp_socket, buf, sizeof(buf)); - if (count == -1 && try_again(GET_ERRNO())) + if (count == -1 && try_again(SOCKERRNO)) continue; else if (count <= 0) handle_error(channel, i, now); @@ -615,7 +609,7 @@ static int open_tcp_socket(ares_channel channel, struct server_state *server) sockin.sin_addr = server->addr; sockin.sin_port = (unsigned short)(channel->tcp_port & 0xffff); if (connect(s, (struct sockaddr *) &sockin, sizeof(sockin)) == -1) { - int err = GET_ERRNO(); + int err = SOCKERRNO; if (err != EINPROGRESS && err != EWOULDBLOCK) { closesocket(s); |