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rvm_main.c
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rvm_main.c
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/* multi.c - test that basic persistency works for multiple segments */
#include "rvm.h"
#include <unistd.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/wait.h>
#define SEGNAME0 "testseg1"
#define SEGNAME1 "testseg2"
#define OFFSET0 200
#define OFFSET1 600
#define STRING0 "test3"
#define STRING1 "test4"
void proc1()
{
rvm_t rvm;
char* segs[2];
trans_t trans;
printf(">>> proc1()\n");
rvm = rvm_init("rvm_segments");
rvm_destroy(rvm, SEGNAME0);
rvm_destroy(rvm, SEGNAME1);
segs[0] = (char*) rvm_map(rvm, SEGNAME0, 1000);
segs[1] = (char*) rvm_map(rvm, SEGNAME1, 1000);
segs[0] = (char*) rvm_map(rvm, SEGNAME0, 300);
trans = rvm_begin_trans(rvm, 2, (void **)segs);
rvm_about_to_modify(trans, segs[0], OFFSET0, 100);
strcpy(segs[0]+OFFSET0, STRING0);
rvm_about_to_modify(trans, segs[1], OFFSET1, 100);
strcpy(segs[1]+OFFSET1, STRING1);
rvm_commit_trans(trans);
abort();
}
void proc2()
{
rvm_t rvm;
char *segs[2];
printf(">>> proc2()\n");
rvm = rvm_init("rvm_segments");
segs[0] = (char*) rvm_map(rvm, SEGNAME0, 1000);
segs[1] = (char*) rvm_map(rvm, SEGNAME1, 1000);
if(strcmp(segs[0] + OFFSET0, STRING0)) {
printf("ERROR in segment 0 (%s)\n", segs[0]+OFFSET0);
exit(2);
}
if(strcmp(segs[1] + OFFSET1, STRING1)) {
printf("ERROR in segment 1 (%s)\n", segs[1]+OFFSET1);
exit(2);
}
printf("OK\n");
}
int main(int argc, char **argv)
{
#if 1
int pid;
pid = fork();
if(pid < 0) {
perror("fork");
exit(2);
}
if(pid == 0) {
proc1();
exit(0);
}
waitpid(pid, NULL, 0);
proc2();
#else
/* truncate test */
proc1();
rvm_t rvm;
printf("Before Truncation:\n");
system("ls -l rvm_segments");
rvm = rvm_init("rvm_segments");
rvm_truncate_log(rvm);
printf("\nAfter Truncation:\n");
system("ls -l rvm_segments");
#endif
return 0;
}