diff options
Diffstat (limited to 'lib/libc')
| -rw-r--r-- | lib/libc/sys/kqueue.2 | 57 | ||||
| -rw-r--r-- | lib/libc/tests/stdio/fmemopen2_test.c | 2 | ||||
| -rw-r--r-- | lib/libc/tests/stdio/freopen_test.c | 1 |
3 files changed, 58 insertions, 2 deletions
diff --git a/lib/libc/sys/kqueue.2 b/lib/libc/sys/kqueue.2 index 104e7bd..b692c1f 100644 --- a/lib/libc/sys/kqueue.2 +++ b/lib/libc/sys/kqueue.2 @@ -24,7 +24,7 @@ .\" .\" $FreeBSD$ .\" -.Dd March 29, 2015 +.Dd May 1, 2016 .Dt KQUEUE 2 .Os .Sh NAME @@ -373,6 +373,10 @@ The file referenced by the descriptor was extended. The file referenced by the descriptor had its attributes changed. .It Dv NOTE_LINK The link count on the file changed. +In particular, the +.Dv NOTE_LINK +event is reported if a subdirectory was created or deleted inside +the directory referenced by the descriptor. .It Dv NOTE_RENAME The file referenced by the descriptor was renamed. .It Dv NOTE_REVOKE @@ -577,6 +581,57 @@ will be set to indicate the error condition. If the time limit expires, then .Fn kevent returns 0. +.Sh EXAMPLES +.Bd -literal -compact +#include <sys/types.h> +#include <sys/event.h> +#include <sys/time.h> +#include <err.h> +#include <fcntl.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <unistd.h> + +int +main(int argc, char **argv) +{ + struct kevent event; /* Event we want to monitor */ + struct kevent tevent; /* Event triggered */ + int kq, fd, ret; + + if (argc != 2) + err(EXIT_FAILURE, "Usage: %s path\en", argv[0]); + fd = open(argv[1], O_RDONLY); + if (fd == -1) + err(EXIT_FAILURE, "Failed to open '%s'", argv[1]); + + /* Create kqueue. */ + kq = kqueue(); + if (kq == -1) + err(EXIT_FAILURE, "kqueue() failed"); + + /* Initialize kevent structure. */ + EV_SET(&event, fd, EVFILT_VNODE, EV_ADD | EV_CLEAR, NOTE_WRITE, + 0, NULL); + /* Attach event to the kqueue. */ + ret = kevent(kq, &event, 1, NULL, 0, NULL); + if (ret == -1) + err(EXIT_FAILURE, "kevent register"); + if (event.flags & EV_ERROR) + errx(EXIT_FAILURE, "Event error: %s", strerror(event.data)); + + for (;;) { + /* Sleep until something happens. */ + ret = kevent(kq, NULL, 0, &tevent, 1, NULL); + if (ret == -1) { + err(EXIT_FAILURE, "kevent wait"); + } else if (ret > 0) { + printf("Something was written in '%s'\en", argv[1]); + } + } +} +.Ed .Sh ERRORS The .Fn kqueue diff --git a/lib/libc/tests/stdio/fmemopen2_test.c b/lib/libc/tests/stdio/fmemopen2_test.c index 62831fb..6b6392d 100644 --- a/lib/libc/tests/stdio/fmemopen2_test.c +++ b/lib/libc/tests/stdio/fmemopen2_test.c @@ -249,12 +249,14 @@ ATF_TC_BODY(test_append_binary_pos, tc) FILE *fp; fp = fmemopen(NULL, 16, "ab+"); + ATF_REQUIRE(fp != NULL); ATF_REQUIRE(ftell(fp) == 0L); fclose(fp); /* Make sure that a pre-allocated buffer behaves correctly. */ char buf[] = "Hello"; fp = fmemopen(buf, sizeof(buf), "ab+"); + ATF_REQUIRE(fp != NULL); ATF_REQUIRE(ftell(fp) == strlen(buf)); fclose(fp); } diff --git a/lib/libc/tests/stdio/freopen_test.c b/lib/libc/tests/stdio/freopen_test.c index 1719927..8ca4719 100644 --- a/lib/libc/tests/stdio/freopen_test.c +++ b/lib/libc/tests/stdio/freopen_test.c @@ -48,7 +48,6 @@ runtest(const char *fname1, const char *mode1, const char *fname2, "fopen(\"%s\", \"%s\") failed; errno=%d", fname1, mode1, errno); fp2 = freopen(fname2, mode2, fp1); if (fp2 == NULL) { - fclose(fp1); ATF_REQUIRE_MSG(success == false, "freopen(\"%s\", \"%s\", fopen(\"%s\", \"%s\")) succeeded " "unexpectedly", fname2_print, mode2, fname1, mode1); |
