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Removed find_task(sender) + l4_ipc_return(ret) from fs0 syscalls.

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Both moved to topmost request handler so syscalls need not call them.
This commit is contained in:
Bahadir Balban
2008-09-16 22:19:54 +03:00
parent ab67ee4cda
commit 86e752be59
4 changed files with 137 additions and 214 deletions
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53
tasks/fs0/main.c
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@@ -16,6 +16,7 @@
#include <syscalls.h>
#include <task.h>
#include <posix/sys/time.h>
#include <l4/api/errno.h>
/*
* TODO:
@@ -48,19 +49,25 @@ void wait_pager(l4id_t partner)
void handle_fs_requests(void)
{
u32 mr[MR_UNUSED_TOTAL];
l4id_t sender;
int err;
l4id_t senderid;
struct tcb *sender;
int ret;
u32 tag;
if ((err = l4_receive(L4_ANYTHREAD)) < 0) {
if ((ret = l4_receive(L4_ANYTHREAD)) < 0) {
printf("%s: %s: IPC Error: %d. Quitting...\n", __TASKNAME__,
__FUNCTION__, err);
__FUNCTION__, ret);
BUG();
}
/* Read conventional ipc data */
tag = l4_get_tag();
sender = l4_get_sender();
senderid = l4_get_sender();
if (!(sender = find_task(senderid))) {
l4_ipc_return(-ESRCH);
return;
}
/* Read mrs not used by syslib */
for (int i = 0; i < MR_UNUSED_TOTAL; i++)
@@ -71,40 +78,40 @@ void handle_fs_requests(void)
switch(tag) {
case L4_IPC_TAG_WAIT:
printf("%s: Synced with waiting thread.\n", __TASKNAME__);
break;
return; /* No reply for this tag */
case L4_IPC_TAG_OPEN:
sys_open(sender, (void *)mr[0], (int)mr[1], (unsigned int)mr[2]);
ret = sys_open(sender, (void *)mr[0], (int)mr[1], (unsigned int)mr[2]);
break;
case L4_IPC_TAG_MKDIR:
sys_mkdir(sender, (const char *)mr[0], (unsigned int)mr[1]);
ret = sys_mkdir(sender, (const char *)mr[0], (unsigned int)mr[1]);
break;
case L4_IPC_TAG_CHDIR:
sys_chdir(sender, (const char *)mr[0]);
ret = sys_chdir(sender, (const char *)mr[0]);
break;
case L4_IPC_TAG_READDIR:
sys_readdir(sender, (int)mr[0], (void *)mr[1], (int)mr[2]);
ret = sys_readdir(sender, (int)mr[0], (void *)mr[1], (int)mr[2]);
break;
case L4_IPC_TAG_PAGER_READ:
pager_sys_read(sender, (unsigned long)mr[0], (unsigned long)mr[1],
(unsigned long)mr[2], (void *)mr[3]);
ret = pager_sys_read(sender, (unsigned long)mr[0], (unsigned long)mr[1],
(unsigned long)mr[2], (void *)mr[3]);
break;
case L4_IPC_TAG_PAGER_OPEN:
pager_sys_open(sender, (l4id_t)mr[0], (int)mr[1]);
ret = pager_sys_open(sender, (l4id_t)mr[0], (int)mr[1]);
break;
case L4_IPC_TAG_PAGER_WRITE:
pager_sys_write(sender, (unsigned long)mr[0], (unsigned long)mr[1],
(unsigned long)mr[2], (void *)mr[3]);
ret = pager_sys_write(sender, (unsigned long)mr[0], (unsigned long)mr[1],
(unsigned long)mr[2], (void *)mr[3]);
break;
case L4_IPC_TAG_PAGER_CLOSE:
pager_sys_close(sender, (l4id_t)mr[0], (int)mr[1]);
ret = pager_sys_close(sender, (l4id_t)mr[0], (int)mr[1]);
break;
case L4_IPC_TAG_PAGER_UPDATE_STATS:
pager_update_stats(sender, (unsigned long)mr[0],
(unsigned long)mr[1]);
ret = pager_update_stats(sender, (unsigned long)mr[0],
(unsigned long)mr[1]);
break;
case L4_IPC_TAG_NOTIFY_FORK:
pager_notify_fork(sender, (l4id_t)mr[0], (l4id_t)mr[1],
(unsigned long)mr[2]);
ret = pager_notify_fork(sender, (l4id_t)mr[0], (l4id_t)mr[1],
(unsigned long)mr[2]);
break;
default:
@@ -112,6 +119,12 @@ void handle_fs_requests(void)
"received from tid: %d. Ignoring.\n", __TASKNAME__,
mr[MR_TAG], sender);
}
/* Reply */
if ((ret = l4_ipc_return(ret)) < 0) {
printf("%s: L4 IPC Error: %d.\n", __FUNCTION__, ret);
BUG();
}
}
void main(void)