mirror of
https://github.com/clearlinux/graphene.git
synced 2026-09-04 12:51:41 +00:00
Dmitrii Kuvaiskii
2c6ff2718f
Multicast and broadcast functionality was added to Linux and Linux-SGX PALs in hope that LibOS would use it for distributed consensus. This never happened, and multicast/broadcast is not used currently.
63 lines
1.9 KiB
C
63 lines
1.9 KiB
C
#include "api.h"
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#include "pal.h"
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#include "pal_debug.h"
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int main(int argc, char** argv, char** envp) {
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char buffer1[20] = "Hello World 1", buffer2[20] = "Hello World 2";
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char buffer3[20], buffer4[20];
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int ret;
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if (argc > 1 && !memcmp(argv[1], "Child", 6)) {
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pal_printf("Child Process Created\n");
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/* check manifest name */
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char manifest[30] = "";
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DkStreamGetName(pal_control.manifest_handle, manifest, 30);
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pal_printf("Loaded Manifest: %s\n", manifest);
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/* check arguments */
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pal_printf("# of Arguments: %d\n", argc);
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for (int i = 0; i < argc; i++) {
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pal_printf("argv[%d] = %s\n", i, argv[i]);
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}
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DkStreamWrite(pal_control.parent_process, 0, 20, buffer1, NULL);
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ret = DkStreamWrite(pal_control.parent_process, 0, 20, buffer1, NULL);
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if (ret > 0)
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pal_printf("Process Write 1 OK\n");
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ret = DkStreamRead(pal_control.parent_process, 0, 20, buffer4, NULL, 0);
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if (ret > 0)
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pal_printf("Process Read 2: %s\n", buffer4);
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} else {
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PAL_STR args[3] = {"Process", "Child", 0};
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PAL_HANDLE children[3];
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for (int i = 0; i < 3; i++) {
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pal_printf("Creating process\n");
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children[i] = DkProcessCreate("file:Process", args);
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if (children[i]) {
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pal_printf("Process created %d\n", i + 1);
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DkStreamRead(children[i], 0, 20, buffer4, NULL, 0);
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}
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}
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for (int i = 0; i < 3; i++)
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if (children[i]) {
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ret = DkStreamRead(children[i], 0, 20, buffer3, NULL, 0);
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if (ret > 0)
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pal_printf("Process Read 1: %s\n", buffer3);
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ret = DkStreamWrite(children[i], 0, 20, buffer2, NULL);
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if (ret > 0)
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pal_printf("Process Write 2 OK\n");
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}
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}
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return 0;
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}
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