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#include <string.h> |
#include <string.h> |
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#include <time.h> |
#include <time.h> |
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#include <unistd.h> |
#include <unistd.h> |
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#include <sys/epoll.h> |
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#include <sys/ioctl.h> |
#include <sys/ioctl.h> |
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#include <sys/select.h> |
#include <sys/select.h> |
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#include <libssh/callbacks.h> |
#include <libssh/callbacks.h> |
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#include <libssh/libssh.h> |
#include <libssh/libssh.h> |
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#include <libssh/server.h> |
#include <libssh/server.h> |
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#ifdef HAVE_SYS_EPOLL_H |
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#include <sys/epoll.h> |
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#else |
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#include <poll.h> |
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#endif |
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const char BBS_default_charset[CHARSET_MAX_LEN + 1] = "UTF-8"; |
const char BBS_default_charset[CHARSET_MAX_LEN + 1] = "UTF-8"; |
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char stdio_charset[CHARSET_MAX_LEN + 1] = "UTF-8"; |
char stdio_charset[CHARSET_MAX_LEN + 1] = "UTF-8"; |
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#ifdef HAVE_SYS_EPOLL_H |
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// epoll for STDIO |
// epoll for STDIO |
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static int stdin_epollfd = -1; |
static int stdin_epollfd = -1; |
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static int stdout_epollfd = -1; |
static int stdout_epollfd = -1; |
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static int stdin_flags; |
#endif |
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static int stdout_flags; |
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static int stdin_flags = 0; |
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static int stdout_flags = 0; |
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// static input / output buffer |
// static input / output buffer |
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static char stdin_buf[LINE_BUFFER_LEN]; |
static char stdin_buf[LINE_BUFFER_LEN]; |
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int io_init(void) |
int io_init(void) |
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{ |
{ |
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#ifdef HAVE_SYS_EPOLL_H |
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struct epoll_event ev; |
struct epoll_event ev; |
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if (stdin_epollfd == -1) |
if (stdin_epollfd == -1) |
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return -1; |
return -1; |
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} |
} |
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// Set STDOUT as non-blocking |
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stdout_flags = fcntl(STDOUT_FILENO, F_GETFL, 0); |
stdout_flags = fcntl(STDOUT_FILENO, F_GETFL, 0); |
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fcntl(STDOUT_FILENO, F_SETFL, stdout_flags | O_NONBLOCK); |
fcntl(STDOUT_FILENO, F_SETFL, stdout_flags | O_NONBLOCK); |
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} |
} |
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#else |
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if (stdin_flags == 0) |
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{ |
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stdin_flags = fcntl(STDIN_FILENO, F_GETFL, 0); |
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fcntl(STDIN_FILENO, F_SETFL, stdin_flags | O_NONBLOCK); |
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} |
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if (stdout_flags == 0) |
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{ |
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stdout_flags = fcntl(STDOUT_FILENO, F_GETFL, 0); |
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fcntl(STDOUT_FILENO, F_SETFL, stdout_flags | O_NONBLOCK); |
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} |
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#endif |
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return 0; |
return 0; |
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} |
} |
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void io_cleanup(void) |
void io_cleanup(void) |
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{ |
{ |
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#ifdef HAVE_SYS_EPOLL_H |
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if (stdin_epollfd != -1) |
if (stdin_epollfd != -1) |
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{ |
{ |
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fcntl(STDIN_FILENO, F_SETFL, stdin_flags); |
fcntl(STDIN_FILENO, F_SETFL, stdin_flags); |
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stdin_flags = 0; |
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if (close(stdin_epollfd) < 0) |
if (close(stdin_epollfd) < 0) |
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{ |
{ |
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if (stdout_epollfd != -1) |
if (stdout_epollfd != -1) |
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{ |
{ |
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fcntl(STDOUT_FILENO, F_SETFL, stdout_flags); |
fcntl(STDOUT_FILENO, F_SETFL, stdout_flags); |
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stdout_flags = 0; |
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if (close(stdout_epollfd) < 0) |
if (close(stdout_epollfd) < 0) |
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{ |
{ |
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} |
} |
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stdout_epollfd = -1; |
stdout_epollfd = -1; |
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} |
} |
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#else |
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if (stdin_flags != 0) |
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{ |
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fcntl(STDIN_FILENO, F_SETFL, stdin_flags); |
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stdin_flags = 0; |
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} |
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if (stdout_flags != 0) |
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{ |
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fcntl(STDOUT_FILENO, F_SETFL, stdout_flags); |
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stdout_flags = 0; |
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} |
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#endif |
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} |
} |
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int prints(const char *format, ...) |
int prints(const char *format, ...) |
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int iflush(void) |
int iflush(void) |
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{ |
{ |
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#ifdef HAVE_SYS_EPOLL_H |
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struct epoll_event events[MAX_EVENTS]; |
struct epoll_event events[MAX_EVENTS]; |
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#else |
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struct pollfd pfds[1]; |
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#endif |
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int nfds; |
int nfds; |
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int retry; |
int retry; |
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int ret = 0; |
int ret = 0; |
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{ |
{ |
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retry--; |
retry--; |
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#ifdef HAVE_SYS_EPOLL_H |
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nfds = epoll_wait(stdout_epollfd, events, MAX_EVENTS, 100); // 0.1 second |
nfds = epoll_wait(stdout_epollfd, events, MAX_EVENTS, 100); // 0.1 second |
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ret = nfds; |
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#else |
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pfds[0].fd = STDOUT_FILENO; |
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pfds[0].events = POLLOUT; |
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nfds = 1; |
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ret = poll(pfds, (nfds_t)nfds, 100); // 0.1 second |
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#endif |
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if (nfds < 0) |
if (ret < 0) |
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{ |
{ |
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if (errno != EINTR) |
if (errno != EINTR) |
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{ |
{ |
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#ifdef HAVE_SYS_EPOLL_H |
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log_error("epoll_wait() error (%d)\n", errno); |
log_error("epoll_wait() error (%d)\n", errno); |
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#else |
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log_error("poll() error (%d)\n", errno); |
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#endif |
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break; |
break; |
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} |
} |
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continue; |
continue; |
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} |
} |
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else if (nfds == 0) // timeout |
else if (ret == 0) // timeout |
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{ |
{ |
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continue; |
continue; |
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} |
} |
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for (int i = 0; i < nfds; i++) |
for (int i = 0; i < nfds; i++) |
| 282 |
{ |
{ |
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#ifdef HAVE_SYS_EPOLL_H |
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if (events[i].data.fd == STDOUT_FILENO) |
if (events[i].data.fd == STDOUT_FILENO) |
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#else |
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if (pfds[i].fd == STDOUT_FILENO && (pfds[i].revents & POLLOUT)) |
| 287 |
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#endif |
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{ |
{ |
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if (stdout_buf_offset < stdout_buf_len) |
if (stdout_buf_offset < stdout_buf_len) |
| 290 |
{ |
{ |
| 361 |
{ |
{ |
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static int stdin_read_wait = 0; |
static int stdin_read_wait = 0; |
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|
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#ifdef HAVE_SYS_EPOLL_H |
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struct epoll_event events[MAX_EVENTS]; |
struct epoll_event events[MAX_EVENTS]; |
| 366 |
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#else |
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struct pollfd pfds[1]; |
| 368 |
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#endif |
| 369 |
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| 370 |
int nfds; |
int nfds; |
| 371 |
int ret; |
int ret; |
| 372 |
int loop; |
int loop; |
| 394 |
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|
| 395 |
if (!stdin_read_wait) |
if (!stdin_read_wait) |
| 396 |
{ |
{ |
| 397 |
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#ifdef HAVE_SYS_EPOLL_H |
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nfds = epoll_wait(stdin_epollfd, events, MAX_EVENTS, timeout); |
nfds = epoll_wait(stdin_epollfd, events, MAX_EVENTS, timeout); |
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ret = nfds; |
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#else |
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pfds[0].fd = STDIN_FILENO; |
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pfds[0].events = POLLIN; |
| 403 |
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nfds = 1; |
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ret = poll(pfds, (nfds_t)nfds, timeout); |
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#endif |
| 406 |
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| 407 |
if (nfds < 0) |
if (ret < 0) |
| 408 |
{ |
{ |
| 409 |
if (errno != EINTR) |
if (errno != EINTR) |
| 410 |
{ |
{ |
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#ifdef HAVE_SYS_EPOLL_H |
| 412 |
log_error("epoll_wait() error (%d)\n", errno); |
log_error("epoll_wait() error (%d)\n", errno); |
| 413 |
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#else |
| 414 |
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log_error("poll() error (%d)\n", errno); |
| 415 |
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#endif |
| 416 |
break; |
break; |
| 417 |
} |
} |
| 418 |
continue; |
continue; |
| 419 |
} |
} |
| 420 |
else if (nfds == 0) // timeout |
else if (ret == 0) // timeout |
| 421 |
{ |
{ |
| 422 |
out = KEY_TIMEOUT; |
out = KEY_TIMEOUT; |
| 423 |
break; |
break; |
| 425 |
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|
| 426 |
for (int i = 0; i < nfds; i++) |
for (int i = 0; i < nfds; i++) |
| 427 |
{ |
{ |
| 428 |
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#ifdef HAVE_SYS_EPOLL_H |
| 429 |
if (events[i].data.fd == STDIN_FILENO) |
if (events[i].data.fd == STDIN_FILENO) |
| 430 |
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#else |
| 431 |
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if (pfds[i].fd == STDIN_FILENO && (pfds[i].revents & POLLIN)) |
| 432 |
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#endif |
| 433 |
{ |
{ |
| 434 |
stdin_read_wait = 1; |
stdin_read_wait = 1; |
| 435 |
} |
} |