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Rewrite ps2kbproc, rbuf (kernel ring buffer) and pipe read/write, Change to -O0 in kernel code

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This commit is contained in:
Kamil Kowalczyk
2025-09-20 16:50:40 +02:00
parent 222e846881
commit 0c65bd9891
8 changed files with 39 additions and 33 deletions
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17
kernel/ipc/pipe/pipe.c
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@ -6,16 +6,20 @@
#include "dlmalloc/malloc.h"
#include "errors.h"
#include "pipe.h"
#include "kprintf.h"
int32_t ipc_pipeinit(IpcPipe *pipe, uint64_t pid) {
hal_memset(pipe, 0, sizeof(*pipe));
spinlock_init(&pipe->spinlock);
pipe->ownerpid = pid;
pipe->rbuf.buffer = dlmalloc(IPC_PIPE_MAX);
if (pipe->rbuf.buffer == NULL) {
uint8_t *buf = dlmalloc(IPC_PIPE_MAX);
if (buf == NULL) {
return E_NOMEMORY;
}
pipe->rbuf.cap = IPC_PIPE_MAX;
rbuf_init(&pipe->rbuf, buf, IPC_PIPE_MAX);
return E_OK;
}
@ -29,9 +33,7 @@ int32_t ipc_pipewrite(IpcPipe *pipe, const uint8_t *const buffer, size_t n) {
size_t i = 0;
spinlock_acquire(&pipe->spinlock);
for (; i < n; i++) {
if (rbuf_push(&pipe->rbuf, buffer[i]) < 0) {
break;
}
rbuf_push(&pipe->rbuf, buffer[i]);
}
spinlock_release(&pipe->spinlock);
return i;
@ -40,10 +42,11 @@ int32_t ipc_pipewrite(IpcPipe *pipe, const uint8_t *const buffer, size_t n) {
int32_t ipc_piperead(IpcPipe *pipe, uint8_t *const buffer, size_t n) {
size_t i = 0;
spinlock_acquire(&pipe->spinlock);
for (; i < n; i++) {
while (i < n) {
if (rbuf_pop(&pipe->rbuf, &buffer[i]) < 0) {
break;
}
i++;
}
spinlock_release(&pipe->spinlock);
return i;