Files
my-os-project2/kernel/syscall/ipcnetsock.c

125 lines
2.6 KiB
C

#include <stddef.h>
#include <stdint.h>
#include "syscall.h"
#include "spinlock/spinlock.h"
#include "ipc/netsock/netsock.h"
#include "util/util.h"
#include "errors.h"
int32_t SYSCALL2(sys_ipc_netsockmake, net1, proto1) {
uint16_t net = net1;
uint16_t proto = proto1;
IpcNetSock *netsock = ipc_netsockmake(net, proto, _caller_pid);
if (netsock == NULL) {
return E_NOMEMORY;
}
spinlock_acquire(&IPC_NETSOCKS.spinlock);
size_t idx = 0;
IpcNetSock *ns = NULL, *nstmp = NULL;
LL_FOREACH_SAFE_IDX(IPC_NETSOCKS.netsocks, ns, nstmp, idx) {
if (ns == netsock) {
break;
}
}
spinlock_release(&IPC_NETSOCKS.spinlock);
return idx;
}
int32_t SYSCALL2(sys_ipc_netsocklisten, socknum1, maxlisteners1) {
size_t socknum = socknum1;
size_t maxlisteners = maxlisteners1;
spinlock_acquire(&IPC_NETSOCKS.spinlock);
size_t idx = 0;
IpcNetSock *ns = NULL, *nstmp = NULL;
LL_FOREACH_SAFE_IDX(IPC_NETSOCKS.netsocks, ns, nstmp, idx) {
if (idx == socknum) {
break;
}
}
spinlock_release(&IPC_NETSOCKS.spinlock);
if (ns == NULL) {
return E_NOENTRY;
}
return ipc_netsocklisten(ns, maxlisteners);
}
int32_t SYSCALL1(sys_ipc_netsockpollev, socknum1) {
size_t socknum = socknum1;
spinlock_acquire(&IPC_NETSOCKS.spinlock);
size_t idx = 0;
IpcNetSock *ns, *nstmp;
LL_FOREACH_SAFE_IDX(IPC_NETSOCKS.netsocks, ns, nstmp, idx) {
if (idx == socknum) {
break;
}
}
spinlock_release(&IPC_NETSOCKS.spinlock);
if (ns == NULL) {
return E_NOENTRY;
}
spinlock_acquire(&ns->spinlock);
IpcNetSockEventBuffer ev;
bool empty = false;
rbuft_pop(&ns->eventbuffer, &ev, &empty);
spinlock_release(&ns->spinlock);
if (empty) {
return E_NOTYET;
}
return (int32_t)ev;
}
int32_t SYSCALL1(sys_ipc_netsockdelete, socknum1) {
size_t socknum = socknum1;
spinlock_acquire(&IPC_NETSOCKS.spinlock);
size_t idx = 0;
IpcNetSock *ns, *nstmp;
LL_FOREACH_SAFE_IDX(IPC_NETSOCKS.netsocks, ns, nstmp, idx) {
if (idx == socknum) {
break;
}
}
spinlock_release(&IPC_NETSOCKS.spinlock);
if (ns == NULL) {
return E_NOENTRY;
}
return ipc_netsockdelete(ns);
}
int32_t SYSCALL2(sys_ipc_netsockbindport, socknum1, port1) {
size_t socknum = socknum1;
uint16_t port = port1;
spinlock_acquire(&IPC_NETSOCKS.spinlock);
size_t idx = 0;
IpcNetSock *ns, *nstmp;
LL_FOREACH_SAFE_IDX(IPC_NETSOCKS.netsocks, ns, nstmp, idx) {
if (idx == socknum) {
break;
}
}
spinlock_release(&IPC_NETSOCKS.spinlock);
if (ns == NULL) {
return E_NOENTRY;
}
return ipc_netsockbindport(ns, port);
}