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usocket.c use LUASOCKET_PRIVATE

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This commit is contained in:
E. Westbrook 2019-02-25 16:04:16 -07:00
parent fe437ee844
commit d7ffc2f4e6
1 changed files with 30 additions and 28 deletions
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58
src/usocket.c
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@ -6,12 +6,14 @@
* The penalty of calling select to avoid busy-wait is only paid when * The penalty of calling select to avoid busy-wait is only paid when
* the I/O call fail in the first place. * the I/O call fail in the first place.
\*=========================================================================*/ \*=========================================================================*/
#include <string.h> #include "luasocket.h"
#include <signal.h>
#include "socket.h" #include "socket.h"
#include "pierror.h" #include "pierror.h"
#include <string.h>
#include <signal.h>
/*-------------------------------------------------------------------------*\ /*-------------------------------------------------------------------------*\
* Wait for readable/writable/connected socket with timeout * Wait for readable/writable/connected socket with timeout
\*-------------------------------------------------------------------------*/ \*-------------------------------------------------------------------------*/
@ -21,7 +23,7 @@
#define WAITFD_R POLLIN #define WAITFD_R POLLIN
#define WAITFD_W POLLOUT #define WAITFD_W POLLOUT
#define WAITFD_C (POLLIN|POLLOUT) #define WAITFD_C (POLLIN|POLLOUT)
int socket_waitfd(p_socket ps, int sw, p_timeout tm) { LUASOCKET_PRIVATE int socket_waitfd(p_socket ps, int sw, p_timeout tm) {
int ret; int ret;
struct pollfd pfd; struct pollfd pfd;
pfd.fd = *ps; pfd.fd = *ps;
@ -43,7 +45,7 @@ int socket_waitfd(p_socket ps, int sw, p_timeout tm) {
#define WAITFD_W 2 #define WAITFD_W 2
#define WAITFD_C (WAITFD_R|WAITFD_W) #define WAITFD_C (WAITFD_R|WAITFD_W)
int socket_waitfd(p_socket ps, int sw, p_timeout tm) { LUASOCKET_PRIVATE int socket_waitfd(p_socket ps, int sw, p_timeout tm) {
int ret; int ret;
fd_set rfds, wfds, *rp, *wp; fd_set rfds, wfds, *rp, *wp;
struct timeval tv, *tp; struct timeval tv, *tp;
@ -75,7 +77,7 @@ int socket_waitfd(p_socket ps, int sw, p_timeout tm) {
/*-------------------------------------------------------------------------*\ /*-------------------------------------------------------------------------*\
* Initializes module * Initializes module
\*-------------------------------------------------------------------------*/ \*-------------------------------------------------------------------------*/
int socket_open(void) { LUASOCKET_PRIVATE int socket_open(void) {
/* installs a handler to ignore sigpipe or it will crash us */ /* installs a handler to ignore sigpipe or it will crash us */
signal(SIGPIPE, SIG_IGN); signal(SIGPIPE, SIG_IGN);
return 1; return 1;
@ -84,14 +86,14 @@ int socket_open(void) {
/*-------------------------------------------------------------------------*\ /*-------------------------------------------------------------------------*\
* Close module * Close module
\*-------------------------------------------------------------------------*/ \*-------------------------------------------------------------------------*/
int socket_close(void) { LUASOCKET_PRIVATE int socket_close(void) {
return 1; return 1;
} }
/*-------------------------------------------------------------------------*\ /*-------------------------------------------------------------------------*\
* Close and inutilize socket * Close and inutilize socket
\*-------------------------------------------------------------------------*/ \*-------------------------------------------------------------------------*/
void socket_destroy(p_socket ps) { LUASOCKET_PRIVATE void socket_destroy(p_socket ps) {
if (*ps != SOCKET_INVALID) { if (*ps != SOCKET_INVALID) {
close(*ps); close(*ps);
*ps = SOCKET_INVALID; *ps = SOCKET_INVALID;
@ -101,7 +103,7 @@ void socket_destroy(p_socket ps) {
/*-------------------------------------------------------------------------*\ /*-------------------------------------------------------------------------*\
* Select with timeout control * Select with timeout control
\*-------------------------------------------------------------------------*/ \*-------------------------------------------------------------------------*/
int socket_select(t_socket n, fd_set *rfds, fd_set *wfds, fd_set *efds, LUASOCKET_PRIVATE int socket_select(t_socket n, fd_set *rfds, fd_set *wfds, fd_set *efds,
p_timeout tm) { p_timeout tm) {
int ret; int ret;
do { do {
@ -118,7 +120,7 @@ int socket_select(t_socket n, fd_set *rfds, fd_set *wfds, fd_set *efds,
/*-------------------------------------------------------------------------*\ /*-------------------------------------------------------------------------*\
* Creates and sets up a socket * Creates and sets up a socket
\*-------------------------------------------------------------------------*/ \*-------------------------------------------------------------------------*/
int socket_create(p_socket ps, int domain, int type, int protocol) { LUASOCKET_PRIVATE int socket_create(p_socket ps, int domain, int type, int protocol) {
*ps = socket(domain, type, protocol); *ps = socket(domain, type, protocol);
if (*ps != SOCKET_INVALID) return IO_DONE; if (*ps != SOCKET_INVALID) return IO_DONE;
else return errno; else return errno;
@ -127,7 +129,7 @@ int socket_create(p_socket ps, int domain, int type, int protocol) {
/*-------------------------------------------------------------------------*\ /*-------------------------------------------------------------------------*\
* Binds or returns error message * Binds or returns error message
\*-------------------------------------------------------------------------*/ \*-------------------------------------------------------------------------*/
int socket_bind(p_socket ps, SA *addr, socklen_t len) { LUASOCKET_PRIVATE int socket_bind(p_socket ps, SA *addr, socklen_t len) {
int err = IO_DONE; int err = IO_DONE;
socket_setblocking(ps); socket_setblocking(ps);
if (bind(*ps, addr, len) < 0) err = errno; if (bind(*ps, addr, len) < 0) err = errno;
@ -138,7 +140,7 @@ int socket_bind(p_socket ps, SA *addr, socklen_t len) {
/*-------------------------------------------------------------------------*\ /*-------------------------------------------------------------------------*\
* *
\*-------------------------------------------------------------------------*/ \*-------------------------------------------------------------------------*/
int socket_listen(p_socket ps, int backlog) { LUASOCKET_PRIVATE int socket_listen(p_socket ps, int backlog) {
int err = IO_DONE; int err = IO_DONE;
if (listen(*ps, backlog)) err = errno; if (listen(*ps, backlog)) err = errno;
return err; return err;
@ -147,14 +149,14 @@ int socket_listen(p_socket ps, int backlog) {
/*-------------------------------------------------------------------------*\ /*-------------------------------------------------------------------------*\
* *
\*-------------------------------------------------------------------------*/ \*-------------------------------------------------------------------------*/
void socket_shutdown(p_socket ps, int how) { LUASOCKET_PRIVATE void socket_shutdown(p_socket ps, int how) {
shutdown(*ps, how); shutdown(*ps, how);
} }
/*-------------------------------------------------------------------------*\ /*-------------------------------------------------------------------------*\
* Connects or returns error message * Connects or returns error message
\*-------------------------------------------------------------------------*/ \*-------------------------------------------------------------------------*/
int socket_connect(p_socket ps, SA *addr, socklen_t len, p_timeout tm) { LUASOCKET_PRIVATE int socket_connect(p_socket ps, SA *addr, socklen_t len, p_timeout tm) {
int err; int err;
/* avoid calling on closed sockets */ /* avoid calling on closed sockets */
if (*ps == SOCKET_INVALID) return IO_CLOSED; if (*ps == SOCKET_INVALID) return IO_CLOSED;
@ -176,7 +178,7 @@ int socket_connect(p_socket ps, SA *addr, socklen_t len, p_timeout tm) {
/*-------------------------------------------------------------------------*\ /*-------------------------------------------------------------------------*\
* Accept with timeout * Accept with timeout
\*-------------------------------------------------------------------------*/ \*-------------------------------------------------------------------------*/
int socket_accept(p_socket ps, p_socket pa, SA *addr, socklen_t *len, p_timeout tm) { LUASOCKET_PRIVATE int socket_accept(p_socket ps, p_socket pa, SA *addr, socklen_t *len, p_timeout tm) {
if (*ps == SOCKET_INVALID) return IO_CLOSED; if (*ps == SOCKET_INVALID) return IO_CLOSED;
for ( ;; ) { for ( ;; ) {
int err; int err;
@ -193,7 +195,7 @@ int socket_accept(p_socket ps, p_socket pa, SA *addr, socklen_t *len, p_timeout
/*-------------------------------------------------------------------------*\ /*-------------------------------------------------------------------------*\
* Send with timeout * Send with timeout
\*-------------------------------------------------------------------------*/ \*-------------------------------------------------------------------------*/
int socket_send(p_socket ps, const char *data, size_t count, LUASOCKET_PRIVATE int socket_send(p_socket ps, const char *data, size_t count,
size_t *sent, p_timeout tm) size_t *sent, p_timeout tm)
{ {
int err; int err;
@ -227,7 +229,7 @@ int socket_send(p_socket ps, const char *data, size_t count,
/*-------------------------------------------------------------------------*\ /*-------------------------------------------------------------------------*\
* Sendto with timeout * Sendto with timeout
\*-------------------------------------------------------------------------*/ \*-------------------------------------------------------------------------*/
int socket_sendto(p_socket ps, const char *data, size_t count, size_t *sent, LUASOCKET_PRIVATE int socket_sendto(p_socket ps, const char *data, size_t count, size_t *sent,
SA *addr, socklen_t len, p_timeout tm) SA *addr, socklen_t len, p_timeout tm)
{ {
int err; int err;
@ -252,7 +254,7 @@ int socket_sendto(p_socket ps, const char *data, size_t count, size_t *sent,
/*-------------------------------------------------------------------------*\ /*-------------------------------------------------------------------------*\
* Receive with timeout * Receive with timeout
\*-------------------------------------------------------------------------*/ \*-------------------------------------------------------------------------*/
int socket_recv(p_socket ps, char *data, size_t count, size_t *got, p_timeout tm) { LUASOCKET_PRIVATE int socket_recv(p_socket ps, char *data, size_t count, size_t *got, p_timeout tm) {
int err; int err;
*got = 0; *got = 0;
if (*ps == SOCKET_INVALID) return IO_CLOSED; if (*ps == SOCKET_INVALID) return IO_CLOSED;
@ -274,7 +276,7 @@ int socket_recv(p_socket ps, char *data, size_t count, size_t *got, p_timeout tm
/*-------------------------------------------------------------------------*\ /*-------------------------------------------------------------------------*\
* Recvfrom with timeout * Recvfrom with timeout
\*-------------------------------------------------------------------------*/ \*-------------------------------------------------------------------------*/
int socket_recvfrom(p_socket ps, char *data, size_t count, size_t *got, LUASOCKET_PRIVATE int socket_recvfrom(p_socket ps, char *data, size_t count, size_t *got,
SA *addr, socklen_t *len, p_timeout tm) { SA *addr, socklen_t *len, p_timeout tm) {
int err; int err;
*got = 0; *got = 0;
@ -302,7 +304,7 @@ int socket_recvfrom(p_socket ps, char *data, size_t count, size_t *got,
* with send/recv replaced with write/read. We can't just use write/read * with send/recv replaced with write/read. We can't just use write/read
* in the socket version, because behaviour when size is zero is different. * in the socket version, because behaviour when size is zero is different.
\*-------------------------------------------------------------------------*/ \*-------------------------------------------------------------------------*/
int socket_write(p_socket ps, const char *data, size_t count, LUASOCKET_PRIVATE int socket_write(p_socket ps, const char *data, size_t count,
size_t *sent, p_timeout tm) size_t *sent, p_timeout tm)
{ {
int err; int err;
@ -337,7 +339,7 @@ int socket_write(p_socket ps, const char *data, size_t count,
* Read with timeout * Read with timeout
* See note for socket_write * See note for socket_write
\*-------------------------------------------------------------------------*/ \*-------------------------------------------------------------------------*/
int socket_read(p_socket ps, char *data, size_t count, size_t *got, p_timeout tm) { LUASOCKET_PRIVATE int socket_read(p_socket ps, char *data, size_t count, size_t *got, p_timeout tm) {
int err; int err;
*got = 0; *got = 0;
if (*ps == SOCKET_INVALID) return IO_CLOSED; if (*ps == SOCKET_INVALID) return IO_CLOSED;
@ -359,7 +361,7 @@ int socket_read(p_socket ps, char *data, size_t count, size_t *got, p_timeout tm
/*-------------------------------------------------------------------------*\ /*-------------------------------------------------------------------------*\
* Put socket into blocking mode * Put socket into blocking mode
\*-------------------------------------------------------------------------*/ \*-------------------------------------------------------------------------*/
void socket_setblocking(p_socket ps) { LUASOCKET_PRIVATE void socket_setblocking(p_socket ps) {
int flags = fcntl(*ps, F_GETFL, 0); int flags = fcntl(*ps, F_GETFL, 0);
flags &= (~(O_NONBLOCK)); flags &= (~(O_NONBLOCK));
fcntl(*ps, F_SETFL, flags); fcntl(*ps, F_SETFL, flags);
@ -368,7 +370,7 @@ void socket_setblocking(p_socket ps) {
/*-------------------------------------------------------------------------*\ /*-------------------------------------------------------------------------*\
* Put socket into non-blocking mode * Put socket into non-blocking mode
\*-------------------------------------------------------------------------*/ \*-------------------------------------------------------------------------*/
void socket_setnonblocking(p_socket ps) { LUASOCKET_PRIVATE void socket_setnonblocking(p_socket ps) {
int flags = fcntl(*ps, F_GETFL, 0); int flags = fcntl(*ps, F_GETFL, 0);
flags |= O_NONBLOCK; flags |= O_NONBLOCK;
fcntl(*ps, F_SETFL, flags); fcntl(*ps, F_SETFL, flags);
@ -377,7 +379,7 @@ void socket_setnonblocking(p_socket ps) {
/*-------------------------------------------------------------------------*\ /*-------------------------------------------------------------------------*\
* DNS helpers * DNS helpers
\*-------------------------------------------------------------------------*/ \*-------------------------------------------------------------------------*/
int socket_gethostbyaddr(const char *addr, socklen_t len, struct hostent **hp) { LUASOCKET_PRIVATE int socket_gethostbyaddr(const char *addr, socklen_t len, struct hostent **hp) {
*hp = gethostbyaddr(addr, len, AF_INET); *hp = gethostbyaddr(addr, len, AF_INET);
if (*hp) return IO_DONE; if (*hp) return IO_DONE;
else if (h_errno) return h_errno; else if (h_errno) return h_errno;
@ -385,7 +387,7 @@ int socket_gethostbyaddr(const char *addr, socklen_t len, struct hostent **hp) {
else return IO_UNKNOWN; else return IO_UNKNOWN;
} }
int socket_gethostbyname(const char *addr, struct hostent **hp) { LUASOCKET_PRIVATE int socket_gethostbyname(const char *addr, struct hostent **hp) {
*hp = gethostbyname(addr); *hp = gethostbyname(addr);
if (*hp) return IO_DONE; if (*hp) return IO_DONE;
else if (h_errno) return h_errno; else if (h_errno) return h_errno;
@ -397,7 +399,7 @@ int socket_gethostbyname(const char *addr, struct hostent **hp) {
* Error translation functions * Error translation functions
* Make sure important error messages are standard * Make sure important error messages are standard
\*-------------------------------------------------------------------------*/ \*-------------------------------------------------------------------------*/
const char *socket_hoststrerror(int err) { LUASOCKET_PRIVATE const char *socket_hoststrerror(int err) {
if (err <= 0) return io_strerror(err); if (err <= 0) return io_strerror(err);
switch (err) { switch (err) {
case HOST_NOT_FOUND: return PIE_HOST_NOT_FOUND; case HOST_NOT_FOUND: return PIE_HOST_NOT_FOUND;
@ -405,7 +407,7 @@ const char *socket_hoststrerror(int err) {
} }
} }
const char *socket_strerror(int err) { LUASOCKET_PRIVATE const char *socket_strerror(int err) {
if (err <= 0) return io_strerror(err); if (err <= 0) return io_strerror(err);
switch (err) { switch (err) {
case EADDRINUSE: return PIE_ADDRINUSE; case EADDRINUSE: return PIE_ADDRINUSE;
@ -421,12 +423,12 @@ const char *socket_strerror(int err) {
} }
} }
const char *socket_ioerror(p_socket ps, int err) { LUASOCKET_PRIVATE const char *socket_ioerror(p_socket ps, int err) {
(void) ps; (void) ps;
return socket_strerror(err); return socket_strerror(err);
} }
const char *socket_gaistrerror(int err) { LUASOCKET_PRIVATE const char *socket_gaistrerror(int err) {
if (err == 0) return NULL; if (err == 0) return NULL;
switch (err) { switch (err) {
case EAI_AGAIN: return PIE_AGAIN; case EAI_AGAIN: return PIE_AGAIN;