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Code Issues Releases Wiki Activity

test: Add anonymous shared memory into testee

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Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
This commit is contained in:
Cyrill Gorcunov
2011-09-24 21:11:23 +04:00
parent af4f7d66d4
commit a49ac47f90
1 changed files with 11 additions and 3 deletions
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14
testee.c
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@@ -84,6 +84,7 @@ int main(int argc, char *argv[])
int fd_shared, fd_private; int fd_shared, fd_private;
const char data_mark[] = "This is a data_mark marker"; const char data_mark[] = "This is a data_mark marker";
void *mmap_shared, *mmap_private, *mmap_anon, *map_unreadable; void *mmap_shared, *mmap_private, *mmap_anon, *map_unreadable;
void *mmap_anon_sh;
const char sep[] = "----------"; const char sep[] = "----------";
pid_t pid, child; pid_t pid, child;
char suided_path[128]; char suided_path[128];
@@ -123,10 +124,12 @@ int main(int argc, char *argv[])
mmap_private = mmap(NULL, 1024, PROT_READ | PROT_WRITE, MAP_FILE | MAP_PRIVATE, fd_private, 0); mmap_private = mmap(NULL, 1024, PROT_READ | PROT_WRITE, MAP_FILE | MAP_PRIVATE, fd_private, 0);
mmap_anon = mmap(NULL, 1024, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0); mmap_anon = mmap(NULL, 1024, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
map_unreadable = mmap(NULL, 1024, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0); map_unreadable = mmap(NULL, 1024, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
mmap_anon_sh = mmap(NULL, 1024, PROT_READ | PROT_WRITE, MAP_ANONYMOUS | MAP_SHARED, -1, 0);
if (mmap_shared == MAP_FAILED || if (mmap_shared == MAP_FAILED ||
mmap_private == MAP_FAILED || mmap_private == MAP_FAILED ||
mmap_anon == MAP_FAILED || mmap_anon == MAP_FAILED ||
mmap_anon_sh == MAP_FAILED ||
map_unreadable == MAP_FAILED) { map_unreadable == MAP_FAILED) {
perror("mmap failed"); perror("mmap failed");
@@ -140,13 +143,15 @@ int main(int argc, char *argv[])
strcpy((char *)mmap_shared, sep); strcpy((char *)mmap_shared, sep);
strcpy((char *)mmap_private, sep); strcpy((char *)mmap_private, sep);
strcpy((char *)mmap_anon, sep); strcpy((char *)mmap_anon, sep);
strcpy((char *)map_unreadable, sep); strcpy((char *)map_unreadable, sep);
strcpy((char *)mmap_anon_sh, sep);
for (i = 64; i < 128; i++) { for (i = 64; i < 128; i++) {
((char *)mmap_shared)[i] = 0 + i; ((char *)mmap_shared)[i] = 0 + i;
((char *)mmap_private)[i] = 64 + i; ((char *)mmap_private)[i] = 64 + i;
((char *)mmap_anon)[i] = 128 + i; ((char *)mmap_anon)[i] = 128 + i;
((char *)mmap_anon_sh)[i] = 128 + i;
((char *)map_unreadable)[i] = 190 + i; ((char *)map_unreadable)[i] = 190 + i;
} }
@@ -204,11 +209,13 @@ int main(int argc, char *argv[])
printf("first child pid: %d\n", getpid()); printf("first child pid: %d\n", getpid());
// while (read(pipefd[0], &buf, sizeof(buf)) > 0) // while (read(pipefd[0], &buf, sizeof(buf)) > 0)
// sleep(3); // sleep(3);
*(unsigned long *)mmap_anon_sh = 0x11111111;
while (1) { while (1) {
printf("ping: %d\n", getpid()); printf("ping: %d\n", getpid());
sleep(8); sleep(8);
} }
} else { } else {
*(unsigned long *)mmap_anon_sh = 0x22222222;
printf("first parent pid: %d\n", getpid()); printf("first parent pid: %d\n", getpid());
// run_clone(); // run_clone();
while (1) { while (1) {
@@ -219,12 +226,13 @@ int main(int argc, char *argv[])
} else { } else {
long buf = 0xdeadbeef; long buf = 0xdeadbeef;
while (1) { while (1) {
*(unsigned long *)mmap_anon_sh = 0x33333333;
printf("ping: %d\n", getpid()); printf("ping: %d\n", getpid());
// write(pipefd[1], &buf, sizeof(buf)); // write(pipefd[1], &buf, sizeof(buf));
sleep(10); sleep(10);
} }
} }
err: err:
/* resources are released by kernel */ /* resources are released by kernel */
return 0; return 0;