launch multiple userspace programs

PauloMigAlmeida · Dec 21, 2021 · d20157d · d20157d
1 parent d6a2159
commit d20157d
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Showing 2 changed files with 13 additions and 12 deletions.
diff --git a/src/kernel/main.c b/src/kernel/main.c
@@ -72,7 +72,7 @@ void kmain(void) {
     scheduler_init(init_proc);
 
     /* test scheduler's ability to switch between tasks */
-    for (size_t i = 2; i <= 9; i++) {
+    for (size_t i = 2; i <= 99; i++) {
         scheduler_add(create_process(0x1C000));
     }
 

diff --git a/src/user/main.c b/src/user/main.c
@@ -10,28 +10,29 @@
 #include "libc/stdlib.h"
 
 void umain(void) {
-    write("Hello from user space", 22);
+    /* greeting */
+    char msg[100];
+    memset(msg, '\0', sizeof(msg));
 
     size_t counter = 0;
     while (1) {
         counter++;
 
-        if (counter % 100000000 == 0) {
-            /* get current time */
-            time_t now = time();
+        if (counter % 1000000 == 0) {
+            memset(msg, '\0', sizeof(msg));
+            memcpy(msg, "process ", 8);
 
             /* get current process id */
             pid_t curr_pid = getpid();
+            ltoa(curr_pid, msg + strlen(msg), 10);
 
-            /* print messge */
-            char msg[50];
-            memset(msg, '\0', sizeof(msg));
-            memcpy(msg, "process ", 8);
-            msg[8] = curr_pid + '0';
-            msg[9] = ' ';
+            memcpy(msg + strlen(msg), " unix time: ", 12);
 
-            ltoa(now, msg+10, 10);
+            /* get current time */
+            time_t now = time();
+            ltoa(now, msg + strlen(msg), 10);
 
+            /* print messge */
             write(msg, strlen(msg) + 1);
         }
     }