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set tcp keepalive for tcp socket #1045

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merged 1 commit into from Jan 7, 2018
Merged

set tcp keepalive for tcp socket #1045

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1 change: 1 addition & 0 deletions AUTHORS.txt
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Expand Up @@ -26,4 +26,5 @@ CONTRIBUTORS ordered by first contribution.
* lovecat<littlefawn@163.com> "Bug fixed"
* panda1986<542638787@qq.com> "Bug fixed"
* YueHonghui<hongf.yue@hotmail.com> "Bug fixed"
* JuntaoLiu<juntliu@gmail.com> "Bug fixed"

10 changes: 10 additions & 0 deletions trunk/src/app/srs_app_listener.cpp
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Expand Up @@ -223,6 +223,16 @@ int SrsTcpListener::listen()
}
srs_verbose("setsockopt reuse-addr success. port=%d, fd=%d", port, _fd);

#ifdef SO_KEEPALIVE
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@winlinvip winlinvip Jan 7, 2018 •
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Why use macro definition to enable this setting? Why not always set SO_KEEPALIVE?
This macro should be undefined, so this code will not take effect, right?

TRANS_BY_GPT3

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@winlinvip winlinvip Jan 7, 2018 •
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This macro is system-defined and is a reasonable way to write it.

TRANS_BY_GPT3

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@juntaoliu juntaoliu Jan 8, 2018 •
edited by winlinvip

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This is not set to open using macros, but to enhance the portability of the code. Most Unix-like systems generally define SO_KEEPALIVE in the system, so there is no problem with or without this macro judgment in such systems. However, if the code is ported to other systems, those systems may not support SO_KEEPALIVE.

TRANS_BY_GPT3

int tcp_keepalive = 1;
if (setsockopt(_fd, SOL_SOCKET, SO_KEEPALIVE, &tcp_keepalive, sizeof(int)) == -1) {
ret = ERROR_SOCKET_SETKEEPALIVE;
srs_error("setsockopt SO_KEEPALIVE[%d]error. port=%d, ret=%d", tcp_keepalive, port, ret);
return ret;
}
srs_verbose("setsockopt SO_KEEPALIVE[%d]success. port=%d", tcp_keepalive, port);
#endif

sockaddr_in addr;
addr.sin_family = AF_INET;
addr.sin_port = htons(port);
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1 change: 1 addition & 0 deletions trunk/src/kernel/srs_kernel_error.hpp
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Expand Up @@ -98,6 +98,7 @@ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
#define ERROR_SYSTEM_CREATE_DIR 1057
#define ERROR_SYSTEM_KILL 1058
#define ERROR_SYSTEM_DNS_RESOLVE 1059
#define ERROR_SOCKET_SETKEEPALIVE 1060

///////////////////////////////////////////////////////
// RTMP protocol error.
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