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authorFreya Murphy <freya@freyacat.org>2025-04-21 16:45:28 -0400
committerFreya Murphy <freya@freyacat.org>2025-04-21 16:45:33 -0400
commitceb9471fed96f907e37a6ba031825c31167a8ff4 (patch)
treed98392e420b4541a6ba926ff4d8b3ebe85734580 /user/progI.c
parentupdate linker scripts (diff)
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update userland to compile
Diffstat (limited to '')
-rw-r--r--user/progI.c107
1 files changed, 0 insertions, 107 deletions
diff --git a/user/progI.c b/user/progI.c
deleted file mode 100644
index a1988e3..0000000
--- a/user/progI.c
+++ /dev/null
@@ -1,107 +0,0 @@
-#include <common.h>
-
-#ifndef MAX_CHILDREN
-#define MAX_CHILDREN 50
-#endif
-
-/**
-** User function I: exit, fork, exec, kill, sleep, waitpid, write
-**
-** Reports, then loops spawing userW, sleeps, kills two children, then
-** loops checking the status of all its children
-**
-** Invoked as: userI [ x [ n ] ]
-** where x is the ID character (defaults to 'i')
-** n is the number of children to spawn (defaults to 5)
-*/
-
-USERMAIN(main)
-{
- int count = 5; // default child count
- char ch = 'i'; // default character to print
- int nap = 5; // nap time
- char buf[128];
- char ch2[] = "*?*";
- uint_t children[MAX_CHILDREN];
- int nkids = 0;
-
- // process the command-line arguments
- switch (argc) {
- case 3:
- count = str2int(argv[2], 10);
- // FALL THROUGH
- case 2:
- ch = argv[1][0];
- break;
- case 1: // just use the defaults
- break;
- default:
- sprint(buf, "userI: argc %d, args: ", argc);
- cwrites(buf);
- for (int i = 0; i <= argc; ++i) {
- sprint(buf, " %s", argv[argc] ? argv[argc] : "(null)");
- cwrites(buf);
- }
- cwrites("\n");
- }
-
- // secondary output (for indicating errors)
- ch2[1] = ch;
-
- // announce our presence
- write(CHAN_SIO, &ch, 1);
-
- // set up the argument vector
- // we run: userW 10 5
-
- char *argsw[] = { "userW", "W", "10", "5", NULL };
-
- for (int i = 0; i < count; ++i) {
- int whom = spawn(ProgW, argsw);
- if (whom < 0) {
- swrites(ch2);
- } else {
- swritech(ch);
- children[nkids++] = whom;
- }
- }
-
- // let the children start
- sleep(SEC_TO_MS(nap));
-
- // kill two of them
- int32_t status = kill(children[1]);
- if (status) {
- sprint(buf, "!! %c: kill(%d) status %d\n", ch, children[1], status);
- cwrites(buf);
- children[1] = -42;
- }
- status = kill(children[3]);
- if (status) {
- sprint(buf, "!! %c: kill(%d) status %d\n", ch, children[3], status);
- cwrites(buf);
- children[3] = -42;
- }
-
- // collect child information
- while (1) {
- int n = waitpid(0, NULL);
- if (n == E_NO_CHILDREN) {
- // all done!
- break;
- }
- for (int i = 0; i < count; ++i) {
- if (children[i] == n) {
- sprint(buf, "== %c: child %d (%d)\n", ch, i, children[i]);
- cwrites(buf);
- }
- }
- sleep(SEC_TO_MS(nap));
- };
-
- // let init() clean up after us!
-
- exit(0);
-
- return (42); // shut the compiler up!
-}