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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 17:20:00 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 17:20:00 +0000 |
commit | 8daa83a594a2e98f39d764422bfbdbc62c9efd44 (patch) | |
tree | 4099e8021376c7d8c05bdf8503093d80e9c7bad0 /ctdb/tests/src/line_test.c | |
parent | Initial commit. (diff) | |
download | samba-8daa83a594a2e98f39d764422bfbdbc62c9efd44.tar.xz samba-8daa83a594a2e98f39d764422bfbdbc62c9efd44.zip |
Adding upstream version 2:4.20.0+dfsg.upstream/2%4.20.0+dfsg
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | ctdb/tests/src/line_test.c | 102 |
1 files changed, 102 insertions, 0 deletions
diff --git a/ctdb/tests/src/line_test.c b/ctdb/tests/src/line_test.c new file mode 100644 index 0000000..806d883 --- /dev/null +++ b/ctdb/tests/src/line_test.c @@ -0,0 +1,102 @@ +/* + Test code for line based I/O over fds + + Copyright (C) Amitay Isaacs 2018 + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 3 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, see <http://www.gnu.org/licenses/>. +*/ + +#include "replace.h" +#include "system/filesys.h" + +#include <talloc.h> +#include <assert.h> + +#include "common/line.c" + +static int line_print(char *line, void *private_data) +{ + printf("%s\n", line); + fflush(stdout); + + return 0; +} + +int main(int argc, const char **argv) +{ + TALLOC_CTX *mem_ctx; + size_t hint = 32; + pid_t pid; + int ret, lines = 0; + int pipefd[2]; + + if (argc < 2 || argc > 3) { + fprintf(stderr, "Usage: %s <filename> [<hint>]\n", argv[0]); + exit(1); + } + + if (argc == 3) { + long value; + + value = atol(argv[2]); + assert(value > 0); + hint = value; + } + + ret = pipe(pipefd); + assert(ret == 0); + + pid = fork(); + assert(pid != -1); + + if (pid == 0) { + char buffer[16]; + ssize_t n, n2; + int fd; + + close(pipefd[0]); + + fd = open(argv[1], O_RDONLY); + assert(fd != -1); + + while (1) { + n = read(fd, buffer, sizeof(buffer)); + assert(n >= 0 && (size_t)n <= sizeof(buffer)); + + if (n == 0) { + break; + } + + n2 = write(pipefd[1], buffer, n); + assert(n2 == n); + } + + close(pipefd[1]); + close(fd); + + exit(0); + } + + close(pipefd[1]); + + mem_ctx = talloc_new(NULL); + assert(mem_ctx != NULL); + + ret = line_read(pipefd[0], hint, NULL, line_print, NULL, &lines); + assert(ret == 0); + + talloc_free(mem_ctx); + + return lines; +} |