int thread_1(void* args)
{
DkThreadDelayExecution(1000);
pal_printf("In Thread 1\n");
while (count < 100)
count++;
DkEventSet(event1);
DkThreadExit();
return 0;
}
int shim_do_nanosleep (const struct __kernel_timespec * rqtp,
struct __kernel_timespec * rmtp)
{
if (!rqtp)
return -EFAULT;
unsigned long time = rqtp->tv_sec * 1000000L + rqtp->tv_nsec / 1000;
unsigned long ret = DkThreadDelayExecution(time);
if (ret < time) {
if (rmtp) {
unsigned long remtime = time - ret;
rmtp->tv_sec = remtime / 1000000L;
rmtp->tv_nsec = (remtime - rmtp->tv_sec * 1000) * 1000;
}
return -EINTR;
}
return 0;
}
int main(int argc, char ** argv)
{
char * name = "parent";
if (argc == 1) {
const char * args[3];
char uri[20], uri2[20];
snprintf(uri2, 20, "file:%s", argv[0]);
args[0] = "Ipc";
args[1] = uri;
args[2] = NULL;
void * mem = (void *) DkVirtualMemoryAlloc(NULL,
pal_control.alloc_align, 0,
PAL_PROT_READ|PAL_PROT_WRITE);
pal_printf("mem = %p\n", mem);
snprintf((char *) mem, 4096, "Hello World");
PAL_NUM key = 0;
PAL_HANDLE chdl = DkCreatePhysicalMemoryChannel(&key);
if (chdl == NULL) {
pal_printf ("(parent) DkCreatePhysicalMemoryChannel Failed,"
" Make sure gipc module is loaded\n");
return 0;
}
snprintf(uri, 20, "gipc:%lld", key);
PAL_HANDLE phdl = DkProcessCreate(uri2, 0, args);
if (phdl == NULL)
pal_printf ("ProcessCreate Failed\n");
PAL_PTR addr = (PAL_PTR) mem;
PAL_NUM size = pal_control.alloc_align;
DkPhysicalMemoryCommit(chdl, 1, &addr, &size, 0);
DkObjectClose(chdl);
char x;
int rv = DkStreamRead(phdl, 0, 1, &x, NULL, 0);
if (rv != 1) {
pal_printf("Failed to get exit signal from child, %d\n", rv);
return -1;
}
}
else {
name = argv[1];
PAL_HANDLE chdl = DkStreamOpen(name, 0, 0, 0, 0);
if (chdl == NULL) {
pal_printf("(child) StreamOpen Failed\n");
return 0;
}
PAL_PTR addr = NULL;
PAL_NUM size = pal_control.alloc_align;
PAL_FLG prot = PAL_PROT_READ|PAL_PROT_WRITE;
int len = DkPhysicalMemoryMap (chdl, 1, &addr, &size, &prot);
if (!len) {
pal_printf("PhysicalMemoryMap Failed\n");
return 0;
}
pal_printf("(child) mem = %p\n", addr);
pal_printf("(child) receive string: %s\n", (char *) addr);
DkStreamDelete(chdl, 0);
DkObjectClose(chdl);
// Write a byte to the parent
int rv = DkStreamWrite(pal_control.parent_process, 0, 1, "z", NULL);
if (rv < 0) {
pal_printf("Failed to write an exit byte\n");
return -1;
}
}
pal_printf("Enter Main Thread (%s)\n", name);
DkThreadDelayExecution (3000);
pal_printf("Leave Main Thread\n");
return 0;
}
int shim_do_pause (void)
{
/* ~0ULL micro sec ~= 805675 years */
DkThreadDelayExecution(~((PAL_NUM)0));
return -EINTR;
}
