pipe_overcommit2_test.c (140558) | pipe_overcommit2_test.c (290914) |
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1/*- 2 * Copyright (C) 2005 Michael J. Silbersack <silby@freebsd.org> 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright --- 12 unchanged lines hidden (view full) --- 21 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 22 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER 23 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH 26 * DAMAGE. 27 */ 28 | 1/*- 2 * Copyright (C) 2005 Michael J. Silbersack <silby@freebsd.org> 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright --- 12 unchanged lines hidden (view full) --- 21 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 22 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER 23 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH 26 * DAMAGE. 27 */ 28 |
29#include <sys/param.h> 30#include <err.h> 31#include <errno.h> 32#include <fcntl.h> |
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29#include <stdio.h> 30#include <stdlib.h> | 33#include <stdio.h> 34#include <stdlib.h> |
31#include <fcntl.h> | 35#include <unistd.h> |
32 33/* | 36 37/* |
34 * $FreeBSD: head/tools/regression/pipe/pipe-overcommit2.c 140558 2005-01-21 06:46:18Z silby $ | 38 * $FreeBSD: head/tests/sys/kern/pipe/pipe_overcommit2_test.c 290914 2015-11-16 05:38:40Z ngie $ |
35 * This program tests how sys_pipe.c handles the case where there 36 * is ample memory to allocate a pipe, but the file descriptor 37 * limit for that user has been exceeded. 38 */ 39 | 39 * This program tests how sys_pipe.c handles the case where there 40 * is ample memory to allocate a pipe, but the file descriptor 41 * limit for that user has been exceeded. 42 */ 43 |
40int main (int argc, void *argv[]) 41 | 44int 45main(void) |
42{ | 46{ |
43 int i, returnval, lastfd; 44 int pipes[10000]; | 47 char template[] = "pipe.XXXXXXXXXX"; 48 int lastfd, pipes[10000], returnval; 49 unsigned int i; |
45 | 50 |
46 for (i = 0; i < 100000; i++) { 47 returnval = open(argv[0], O_RDONLY); 48 if (returnval < 1) | 51 lastfd = -1; 52 53 if (mkstemp(template) == -1) 54 err(1, "mkstemp failed"); 55 56 for (i = 0; i < nitems(pipes); i++) { 57 returnval = open(template, O_RDONLY); 58 if (returnval == -1 && (errno == ENFILE || errno == EMFILE)) |
49 break; /* All descriptors exhausted. */ 50 else 51 lastfd = returnval; 52 } 53 54 /* First falloc failure case in sys_pipe.c:pipe() */ 55 for (i = 0; i < 1000; i++) { 56 returnval = pipe(&pipes[i]); --- 4 unchanged lines hidden (view full) --- 61 * case will occur. 62 */ 63 close(lastfd); 64 65 for (i = 0; i < 1000; i++) { 66 returnval = pipe(&pipes[i]); 67 } 68 printf("PASS\n"); | 59 break; /* All descriptors exhausted. */ 60 else 61 lastfd = returnval; 62 } 63 64 /* First falloc failure case in sys_pipe.c:pipe() */ 65 for (i = 0; i < 1000; i++) { 66 returnval = pipe(&pipes[i]); --- 4 unchanged lines hidden (view full) --- 71 * case will occur. 72 */ 73 close(lastfd); 74 75 for (i = 0; i < 1000; i++) { 76 returnval = pipe(&pipes[i]); 77 } 78 printf("PASS\n"); |
79 80 unlink(template); 81 82 exit(0); |
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69} | 83} |