diff options
| author | Denis Vlasenko <vda.linux@googlemail.com> | 2007-09-07 13:43:28 +0000 |
|---|---|---|
| committer | Denis Vlasenko <vda.linux@googlemail.com> | 2007-09-07 13:43:28 +0000 |
| commit | 87f3b26b3a17369c12f4f9a70d6845796f8648d6 (patch) | |
| tree | 2f7fe9fc910d5e97f695c902f848db497fec8bfd /sysklogd | |
| parent | 40f0bcf9d3f8f8a8d14a9b2cff51761019c75cf4 (diff) | |
*: replace select-for-one descriptor with poll, it's smaller.
$ ./.cmk bloatcheck
function old new delta
readit 406 364 -42
syslogd_main 1249 1206 -43
traceroute_main 4115 4060 -55
mysleep 112 45 -67
arpping 579 441 -138
tftp 1575 1182 -393
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 0/6 up/down: 0/-738) Total: -738 bytes
text data bss dec hex filename
770580 1051 10764 782395 bf03b busybox_old
769820 1051 10764 781635 bed43 busybox_unstripped
Diffstat (limited to 'sysklogd')
| -rw-r--r-- | sysklogd/syslogd.c | 20 |
1 files changed, 10 insertions, 10 deletions
diff --git a/sysklogd/syslogd.c b/sysklogd/syslogd.c index 5b153f509..ae3f1a2eb 100644 --- a/sysklogd/syslogd.c +++ b/sysklogd/syslogd.c @@ -471,8 +471,8 @@ static void do_syslogd(void) ATTRIBUTE_NORETURN; static void do_syslogd(void) { struct sockaddr_un sunx; - int sock_fd; - fd_set fds; + struct pollfd pfd[1]; +#define sock_fd (pfd[0].fd) char *dev_log_name; /* Set up signal handlers */ @@ -526,20 +526,20 @@ static void do_syslogd(void) (char*)"syslogd started: BusyBox v" BB_VER, 0); for (;;) { - FD_ZERO(&fds); - FD_SET(sock_fd, &fds); - - if (select(sock_fd + 1, &fds, NULL, NULL, NULL) < 0) { + /*pfd[0].fd = sock_fd;*/ + pfd[0].events = POLLIN; + pfd[0].revents = 0; + if (poll(pfd, 1, -1) < 0) { /* -1: no timeout */ if (errno == EINTR) { /* alarm may have happened */ continue; } - bb_perror_msg_and_die("select"); + bb_perror_msg_and_die("poll"); } - if (FD_ISSET(sock_fd, &fds)) { + if (pfd[0].revents) { int i; - i = recv(sock_fd, G.recvbuf, MAX_READ - 1, 0); + i = read(sock_fd, G.recvbuf, MAX_READ - 1); if (i <= 0) bb_perror_msg_and_die("UNIX socket error"); /* TODO: maybe suppress duplicates? */ @@ -559,7 +559,7 @@ static void do_syslogd(void) #endif G.recvbuf[i] = '\0'; split_escape_and_log(G.recvbuf, i); - } /* FD_ISSET() */ + } } /* for */ } |