1 /*
2 * Copyright 2007, Axel Dörfler, axeld@pinc-software.de. All rights reserved.
3 * Distributed under the terms of the MIT License.
4 *
5 * Copyright 2002, Manuel J. Petit. All rights reserved.
6 * Distributed under the terms of the NewOS License.
7 */
8
9
10 #include <image.h>
11
12 #include <string.h>
13 #include <stdlib.h>
14 #include <stdio.h>
15
16
17 static void
usage(char const * app)18 usage(char const *app)
19 {
20 printf("usage: %s [-s] ###\n", app);
21 exit(-1);
22 }
23
24
25 int
main(int argc,char * argv[])26 main(int argc, char *argv[])
27 {
28 bool silent = false;
29 int num = 0;
30 int result;
31
32 switch (argc) {
33 case 2:
34 num = atoi(argv[1]);
35 break;
36 case 3:
37 if (!strcmp(argv[1], "-s")) {
38 num = atoi(argv[2]);
39 silent = true;
40 break;
41 }
42 // supposed to fall through
43
44 default:
45 usage(argv[0]);
46 break;
47 }
48
49 if (num < 2) {
50 result = num;
51 } else {
52 char buffer[64];
53 char* args[]= { argv[0], "-s", buffer, NULL };
54 int argCount = 3;
55 status_t status;
56
57 snprintf(buffer, sizeof(buffer), "%d", num - 1);
58 thread_id threadA = load_image(argCount, (const char**)args, (const char**)environ);
59 if (threadA < B_OK) {
60 fprintf(stderr, "Could not create thread A: %s\n", strerror(threadA));
61 return -1;
62 }
63
64 snprintf(buffer, sizeof(buffer), "%d", num - 2);
65 thread_id threadB = load_image(argCount, (const char**)args, (const char**)environ);
66 if (threadB < B_OK) {
67 fprintf(stderr, "Could not create thread B: %s\n", strerror(threadB));
68 return -1;
69 }
70
71 resume_thread(threadA);
72 resume_thread(threadB);
73
74 status_t returnValue = 0;
75 do {
76 status = wait_for_thread(threadA, &returnValue);
77 } while (status == B_INTERRUPTED);
78
79 if (status == B_OK)
80 result = returnValue;
81 else
82 fprintf(stderr, "wait_for_thread(%ld) A failed: %s\n", threadA, strerror(status));
83
84 do {
85 status = wait_for_thread(threadB, &returnValue);
86 } while (status == B_INTERRUPTED);
87
88 if (status == B_OK)
89 result += returnValue;
90 else
91 fprintf(stderr, "wait_for_thread(%ld) B failed: %s\n", threadB, strerror(status));
92 }
93
94 if (silent) {
95 return result;
96 } else {
97 printf("%d\n", result);
98 return 0;
99 }
100 }
101
102