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Add support for socket send/receive timeouts.

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Only the receive timeout is hooked up yet. You can change the timeout by
calling setsockopt(..., SOL_SOCKET, SO_RCVTIMEO, ...).

Use this mechanism to make /bin/ping report timeouts.
This commit is contained in:
Andreas Kling 2019-03-13 13:13:23 +01:00
parent 7bcd386338
commit 562663df7c
12 changed files with 212 additions and 12 deletions
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14
LibC/sys/socket.cpp
View file

@ -48,4 +48,18 @@ ssize_t recvfrom(int sockfd, void* buffer, size_t buffer_length, int flags, cons
__RETURN_WITH_ERRNO(rc, rc, -1);
}
int getsockopt(int sockfd, int level, int option, void* value, socklen_t* value_size)
{
Syscall::SC_getsockopt_params params { sockfd, level, option, value, value_size };
int rc = syscall(SC_getsockopt, &params);
__RETURN_WITH_ERRNO(rc, rc, -1);
}
int setsockopt(int sockfd, int level, int option, const void* value, socklen_t value_size)
{
Syscall::SC_setsockopt_params params { sockfd, level, option, value, value_size };
int rc = syscall(SC_setsockopt, &params);
__RETURN_WITH_ERRNO(rc, rc, -1);
}
}

7
LibC/sys/socket.h
View file

@ -45,6 +45,11 @@ struct sockaddr_in {
char sin_zero[8];
};
#define SOL_SOCKET 1
#define SO_RCVTIMEO 1
#define SO_SNDTIMEO 2
int socket(int domain, int type, int protocol);
int bind(int sockfd, const sockaddr* addr, socklen_t);
int listen(int sockfd, int backlog);
@ -52,6 +57,8 @@ int accept(int sockfd, sockaddr*, socklen_t*);
int connect(int sockfd, const sockaddr*, socklen_t);
ssize_t sendto(int sockfd, const void*, size_t, int flags, const struct sockaddr*, socklen_t);
ssize_t recvfrom(int sockfd, void*, size_t, int flags, const struct sockaddr*, socklen_t);
int getsockopt(int sockfd, int level, int option, void*, socklen_t*);
int setsockopt(int sockfd, int level, int option, const void*, socklen_t);
__END_DECLS