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add PCTL_DELETE for removing pipes

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This commit is contained in:
Kamil Kowalczyk
2025-09-18 22:43:24 +02:00
parent 024a5b2e21
commit 4c17f26915
4 changed files with 30 additions and 18 deletions
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1
base/scripts/init.tb
View File

@ -1,3 +1,2 @@
@print "this is an init script!"
base:/bin/pctl ls
base:/bin/tb -m interactive

15
kernel/syscall/ipcpipe.c
View File

@ -61,6 +61,21 @@ int32_t SYSCALL5(sys_ipcpipe, pid1, pipenum1, cmd1, buffer1, len1) {
ret = E_OK;
} break;
case IPCPIPE_DELETE: {
if (pipenum >= PROC_PIPEHANDLES_MAX) {
ret = E_NOMEMORY;
goto done;
}
spinlock_acquire(&proc->pipes_spinlock);
if (proc->pipes[pipenum] != NULL) {
ipc_pipefree(proc->pipes[pipenum]);
dlfree(proc->pipes[pipenum]);
proc->pipes[pipenum] = NULL;
}
spinlock_release(&proc->pipes_spinlock);
ret = E_OK;
} break;
case IPCPIPE_WRITE: {
if (pipenum >= PROC_PIPEHANDLES_MAX) {
ret = E_INVALIDARGUMENT;

1
share/sysdefs/ipcpipe.h
View File

@ -15,6 +15,7 @@ enum {
IPCPIPE_WRITE = 2,
IPCPIPE_ADD_BCAST = 3,
IPCPIPE_REPLACE = 4,
IPCPIPE_DELETE = 5,
};
#endif // SHARE_SYSDEFS_IPCPIPE_H_

19
user/tb/interp.c
View File

@ -212,6 +212,7 @@ bool interp_runstring(const char *string, InterpResult **res, bool logcmds) {
#define OUTBUF_MAX 1024
char *outbuf = dlmalloc(OUTBUF_MAX);
string_memset(outbuf, 0, OUTBUF_MAX);
ipcpipe(PID, SUBPROC_PIPE_OUT, IPCPIPE_MAKE, NULL, 0);
@ -219,27 +220,23 @@ bool interp_runstring(const char *string, InterpResult **res, bool logcmds) {
if (app < 0) {
usprintf(RES.errmsg, "Could not run %s: %s\n", appname, ERRSTRING(app));
ok = false;
dlfree(outbuf);
for (size_t j = 0; j < argslen1; j++) {
dlfree(args1[j]);
}
dlfree(args1);
dlfree(appname);
goto done;
goto cleanup;
}
ipcpipe(app, IPCPIPE_OUT, IPCPIPE_REPLACE, (uint8_t *)PID, SUBPROC_PIPE_OUT);
ipcpipe(app, IPCPIPE_IN, IPCPIPE_REPLACE, (uint8_t *)PID, IPCPIPE_IN);
processctl(app, PCTL_RUN, 0, 0, 0);
while (processctl(app, PCTL_POLLSTATE, 0, 0, 0) != 4) {
string_memset(outbuf, 0, OUTBUF_MAX);
int32_t nrd = ipcpipe(PID, SUBPROC_PIPE_OUT, IPCPIPE_READ, (uint8_t *)outbuf, sizeof(outbuf));
do {
int32_t nrd = ipcpipe(PID, SUBPROC_PIPE_OUT, IPCPIPE_READ, (uint8_t *)outbuf, OUTBUF_MAX);
if (nrd > 0) {
uprintf("%s", outbuf);
string_memset(outbuf, 0, OUTBUF_MAX);
}
}
} while(processctl(app, PCTL_POLLSTATE, 0, 0, 0) != 4);
cleanup:
ipcpipe(PID, SUBPROC_PIPE_OUT, IPCPIPE_DELETE, NULL, 0);
dlfree(outbuf);
for (size_t j = 0; j < argslen1; j++) {
dlfree(args1[j]);