mirror of
https://github.com/clearlinux/graphene.git
synced 2026-09-08 06:41:58 +00:00
Chia-Che Tsai
7f19f62f31
Plenty of bugfixes for Linux kernel later than 3.5 and Ubuntu later than 10.10. More organized code to improve portability. Regression tests for Pal to test completeness of implementation.
101 lines
2.7 KiB
C
101 lines
2.7 KiB
C
/* -*- mode:c; c-file-style:"k&r"; c-basic-offset: 4; tab-width:4; indent-tabs-mode:nil; mode:auto-fill; fill-column:78; -*- */
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/* vim: set ts=4 sw=4 et tw=78 fo=cqt wm=0: */
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#include "pal.h"
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#include "pal_debug.h"
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#include "api.h"
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int main(int argc, char ** argv)
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{
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char * name = "parent";
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if (argc == 1) {
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const char * args[3];
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char uri[20], uri2[20];
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snprintf(uri2, 20, "file:%s", argv[0]);
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args[0] = "Ipc";
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args[1] = uri;
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args[2] = NULL;
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void * mem = (void *) DkVirtualMemoryAlloc(NULL,
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pal_control.alloc_align, 0,
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PAL_PROT_READ|PAL_PROT_WRITE);
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pal_printf("mem = %p\n", mem);
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snprintf((char *) mem, 4096, "Hello World");
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PAL_NUM key = 0;
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PAL_HANDLE chdl = DkCreatePhysicalMemoryChannel(&key);
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if (chdl == NULL) {
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pal_printf ("(parent) DkCreatePhysicalMemoryChannel Failed,"
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" Make sure gipc module is loaded\n");
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return 0;
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}
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snprintf(uri, 20, "gipc:%lld", key);
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PAL_HANDLE phdl = DkProcessCreate(uri2, 0, args);
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if (phdl == NULL)
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pal_printf ("ProcessCreate Failed\n");
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PAL_PTR addr = (PAL_PTR) mem;
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PAL_NUM size = pal_control.alloc_align;
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DkPhysicalMemoryCommit(chdl, 1, &addr, &size, 0);
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DkObjectClose(chdl);
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char x;
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int rv = DkStreamRead(phdl, 0, 1, &x, NULL, 0);
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if (rv != 1) {
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pal_printf("Failed to get exit signal from child, %d\n", rv);
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return -1;
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}
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}
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else {
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name = argv[1];
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PAL_HANDLE chdl = DkStreamOpen(name, 0, 0, 0, 0);
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if (chdl == NULL) {
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pal_printf("(child) StreamOpen Failed\n");
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return 0;
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}
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PAL_PTR addr = NULL;
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PAL_NUM size = pal_control.alloc_align;
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PAL_FLG prot = PAL_PROT_READ|PAL_PROT_WRITE;
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int len = DkPhysicalMemoryMap (chdl, 1, &addr, &size, &prot);
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if (!len) {
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pal_printf("PhysicalMemoryMap Failed\n");
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return 0;
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}
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pal_printf("(child) mem = %p\n", addr);
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pal_printf("(child) receive string: %s\n", (char *) addr);
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DkStreamDelete(chdl, 0);
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DkObjectClose(chdl);
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// Write a byte to the parent
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int rv = DkStreamWrite(pal_control.parent_process, 0, 1, "z", NULL);
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if (rv < 0) {
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pal_printf("Failed to write an exit byte\n");
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return -1;
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}
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}
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pal_printf("Enter Main Thread (%s)\n", name);
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DkThreadDelayExecution (3000);
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pal_printf("Leave Main Thread\n");
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return 0;
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}
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