ebd3c0673d
The new functionality aims to save each file system server from having to implement its own block I/O routines just so that it can serve as a root file system. The new source file (bio.c) lists the requirements that file system servers have to fulfill in order to use the routines. Change-Id: Ia0190fd5c30e8c2097ed8f4b0e3ccde1827e0b92
92 lines
1.9 KiB
C
92 lines
1.9 KiB
C
/* Test 73 - VM secondary cache blackbox test.
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*
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* Blackbox test of the VM secondary cache in isolation, implemented
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* in testvm.c, started as a service by this test program.
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*/
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#define _MINIX_SYSTEM 1
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#include <minix/sysutil.h>
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#include <minix/syslib.h>
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#include <minix/vm.h>
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#include <minix/bdev.h>
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#include <minix/paths.h>
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#include <sys/types.h>
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#include <sys/mman.h>
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#include <sys/ioc_memory.h>
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#include <stdio.h>
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#include <stdarg.h>
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#include <assert.h>
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#include <string.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <fcntl.h>
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#include <math.h>
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#include <minix/libminixfs.h>
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#include "testvm.h"
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int max_error = 0;
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#include "common.h"
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#include "testcache.h"
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int
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main(int argc, char *argv[])
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{
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char pipefn[30], cwd[400], cmdline[400];
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int pipefd;
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static struct info i;
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ssize_t r;
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int big = 0;
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#define ITER 3
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#define BLOCKS 200
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start(73);
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unlink(pipefn);
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/* 'big' as a substring indicates to testvm that it's ok to
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* run a long test
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*/
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if(getenv(BIGVARNAME)) big = 1;
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if(big) strcpy(pipefn, "pipe_testvm_big");
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else strcpy(pipefn, "pipe_testvm");
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umask(0);
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if(mkfifo(pipefn, 0666) < 0) { e(1); exit(1); }
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if(!getcwd(cwd, sizeof(cwd))) { e(2); exit(1); }
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/* stop residual testvm service if any */
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snprintf(cmdline, sizeof(cmdline), "%s down testvm >/dev/null 2>&1",
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_PATH_SERVICE);
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if(system(cmdline) < 0) { e(9); exit(1); }
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/* start the testvm service */
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snprintf(cmdline, sizeof(cmdline),
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"%s up /%s/../testvm -script /etc/rs.single "
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"-args /%s/%s -config %s/../testvm.conf",
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_PATH_SERVICE, cwd, cwd, pipefn, cwd);
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if(system(cmdline) < 0) { e(10); exit(1); }
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/* don't hang forever if the open or read block */
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alarm(big ? 6000 : 600);
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if((pipefd=open(pipefn, O_RDONLY)) < 0) { e(3); exit(1); }
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if((r=read(pipefd, &i, sizeof(i))) != sizeof(i)) {
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printf("read returned %d\n", r);
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e(12);
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exit(1);
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}
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if(i.result != 0) { e(i.result); }
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quit();
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return 0;
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}
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