RickRongen/my-kern
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

feat: implemented errno, strtol. Started ustar. Reformatted headers and

Browse Source 
code. Added some self-tests. Started prepwork for vfs.
This commit is contained in:
Rick Rongen
2021-03-14 21:14:22 +01:00
parent 586b8191b4
commit 77c8dca72a
39 changed files with 504 additions and 60 deletions
Download Patch File Download Diff File Expand all files Collapse all files

11
kernel/tasks/task.c
View File

@@ -23,6 +23,7 @@
#define TASK_STATE_STOPPED (1 << 6)
#define TASK_STATE_ERROR (1 << 7)
int errno = 0;
typedef struct task {
bool present: 1;
@@ -31,6 +32,8 @@ typedef struct task {
uint32_t tid;
int errno;
struct task *next;
void *stack;
@@ -142,10 +145,14 @@ void task_switch_next_inner(task_t *next_task) {
}
task_t *previous_task = current_task;
current_task = next_task;
if (previous_task->state == TASK_STATE_RUNNING) {
previous_task->state = TASK_STATE_RUNNABLE;
if (previous_task != NULL) {
previous_task->errno = errno;
if (previous_task->state == TASK_STATE_RUNNING) {
previous_task->state = TASK_STATE_RUNNABLE;
}
}
current_task->state = TASK_STATE_RUNNING;
errno = current_task->errno;
// switch task
switch_task(previous_task == NULL ? NULL : &previous_task->task_registers, current_task->task_registers);
}