homework-jianmu/source/os/src/osSystem.c

302 lines
7.3 KiB
C

/*
* Copyright (c) 2019 TAOS Data, Inc. <jhtao@taosdata.com>
*
* This program is free software: you can use, redistribute, and/or modify
* it under the terms of the GNU Affero General Public License, version 3
* or later ("AGPL"), as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#define ALLOW_FORBID_FUNC
#define _DEFAULT_SOURCE
#include "os.h"
#if defined(WINDOWS)
typedef void (*MainWindows)(int argc, char** argv);
MainWindows mainWindowsFunc = NULL;
SERVICE_STATUS ServiceStatus;
SERVICE_STATUS_HANDLE hServiceStatusHandle;
void WINAPI windowsServiceCtrlHandle(DWORD request) {
switch (request) {
case SERVICE_CONTROL_STOP:
case SERVICE_CONTROL_SHUTDOWN:
raise(SIGINT);
ServiceStatus.dwCurrentState = SERVICE_STOP_PENDING;
if (!SetServiceStatus(hServiceStatusHandle, &ServiceStatus)) {
DWORD nError = GetLastError();
printf("failed to send stopped status to windows service: %d", nError);
}
break;
default:
return;
}
}
void WINAPI mainWindowsService(int argc, char** argv) {
int ret = 0;
ServiceStatus.dwServiceType = SERVICE_WIN32;
ServiceStatus.dwControlsAccepted = SERVICE_ACCEPT_PAUSE_CONTINUE | SERVICE_ACCEPT_STOP | SERVICE_ACCEPT_SHUTDOWN;
ServiceStatus.dwCurrentState = SERVICE_START_PENDING;
ServiceStatus.dwWin32ExitCode = 0;
ServiceStatus.dwCheckPoint = 0;
ServiceStatus.dwWaitHint = 0;
ServiceStatus.dwServiceSpecificExitCode = 0;
hServiceStatusHandle = RegisterServiceCtrlHandler("taosd", &windowsServiceCtrlHandle);
if (hServiceStatusHandle == 0) {
DWORD nError = GetLastError();
printf("failed to register windows service ctrl handler: %d", nError);
}
ServiceStatus.dwCurrentState = SERVICE_RUNNING;
if (SetServiceStatus(hServiceStatusHandle, &ServiceStatus)) {
DWORD nError = GetLastError();
printf("failed to send running status to windows service: %d", nError);
}
if (mainWindowsFunc != NULL) mainWindowsFunc(argc, argv);
ServiceStatus.dwCurrentState = SERVICE_STOPPED;
if (!SetServiceStatus(hServiceStatusHandle, &ServiceStatus)) {
DWORD nError = GetLastError();
printf("failed to send stopped status to windows service: %d", nError);
}
}
void stratWindowsService(MainWindows mainWindows) {
mainWindowsFunc = mainWindows;
SERVICE_TABLE_ENTRY ServiceTable[2];
ServiceTable[0].lpServiceName = "taosd";
ServiceTable[0].lpServiceProc = (LPSERVICE_MAIN_FUNCTION)mainWindowsService;
ServiceTable[1].lpServiceName = NULL;
ServiceTable[1].lpServiceProc = NULL;
StartServiceCtrlDispatcher(ServiceTable);
}
#elif defined(_TD_DARWIN_64)
#else
#include <dlfcn.h>
#include <termios.h>
#include <unistd.h>
#endif
#if !defined(WINDOWS)
struct termios oldtio;
#endif
typedef struct FILE TdCmd;
void* taosLoadDll(const char* filename) {
#if defined(WINDOWS)
ASSERT(0);
return NULL;
#elif defined(_TD_DARWIN_64)
return NULL;
#else
void* handle = dlopen(filename, RTLD_LAZY);
if (!handle) {
// printf("load dll:%s failed, error:%s", filename, dlerror());
return NULL;
}
// printf("dll %s loaded", filename);
return handle;
#endif
}
void* taosLoadSym(void* handle, char* name) {
#if defined(WINDOWS)
ASSERT(0);
return NULL;
#elif defined(_TD_DARWIN_64)
return NULL;
#else
void* sym = dlsym(handle, name);
char* error = NULL;
if ((error = dlerror()) != NULL) {
// printf("load sym:%s failed, error:%s", name, dlerror());
return NULL;
}
// printf("sym %s loaded", name);
return sym;
#endif
}
void taosCloseDll(void* handle) {
#if defined(WINDOWS)
ASSERT(0);
return;
#elif defined(_TD_DARWIN_64)
return;
#else
if (handle) {
dlclose(handle);
}
#endif
}
int taosSetConsoleEcho(bool on) {
#if defined(WINDOWS)
HANDLE hStdin = GetStdHandle(STD_INPUT_HANDLE);
DWORD mode = 0;
GetConsoleMode(hStdin, &mode);
if (on) {
mode |= ENABLE_ECHO_INPUT;
} else {
mode &= ~ENABLE_ECHO_INPUT;
}
SetConsoleMode(hStdin, mode);
return 0;
#else
#define ECHOFLAGS (ECHO | ECHOE | ECHOK | ECHONL)
int err;
struct termios term;
if (tcgetattr(STDIN_FILENO, &term) == -1) {
/*perror("Cannot get the attribution of the terminal");*/
return -1;
}
if (on)
term.c_lflag |= ECHOFLAGS;
else
term.c_lflag &= ~ECHOFLAGS;
err = tcsetattr(STDIN_FILENO, TCSAFLUSH, &term);
if (err == -1 || err == EINTR) {
/*printf("Cannot set the attribution of the terminal");*/
return -1;
}
return 0;
#endif
}
void taosSetTerminalMode() {
#if defined(WINDOWS)
#else
struct termios newtio;
/* if (atexit() != 0) { */
/* fprintf(stderr, "Error register exit function!\n"); */
/* exit(EXIT_FAILURE); */
/* } */
memcpy(&newtio, &oldtio, sizeof(oldtio));
// Set new terminal attributes.
newtio.c_iflag &= ~(IXON | IXOFF | ICRNL | INLCR | IGNCR | IMAXBEL | ISTRIP);
newtio.c_iflag |= IGNBRK;
// newtio.c_oflag &= ~(OPOST|ONLCR|OCRNL|ONLRET);
newtio.c_oflag |= OPOST;
newtio.c_oflag |= ONLCR;
newtio.c_oflag &= ~(OCRNL | ONLRET);
newtio.c_lflag &= ~(IEXTEN | ICANON | ECHO | ECHOE | ECHONL | ECHOCTL | ECHOPRT | ECHOKE | ISIG);
newtio.c_cc[VMIN] = 1;
newtio.c_cc[VTIME] = 0;
if (tcsetattr(0, TCSANOW, &newtio) != 0) {
fprintf(stderr, "Fail to set terminal properties!\n");
exit(EXIT_FAILURE);
}
#endif
}
int32_t taosGetOldTerminalMode() {
#if defined(WINDOWS)
#else
/* Make sure stdin is a terminal. */
if (!isatty(STDIN_FILENO)) {
return -1;
}
// Get the parameter of current terminal
if (tcgetattr(0, &oldtio) != 0) {
return -1;
}
return 1;
#endif
}
void taosResetTerminalMode() {
#if defined(WINDOWS)
#else
if (tcsetattr(0, TCSANOW, &oldtio) != 0) {
fprintf(stderr, "Fail to reset the terminal properties!\n");
exit(EXIT_FAILURE);
}
#endif
}
TdCmdPtr taosOpenCmd(const char* cmd) {
if (cmd == NULL) return NULL;
#ifdef WINDOWS
return (TdCmdPtr)_popen(cmd, "r");
#else
return (TdCmdPtr)popen(cmd, "r");
#endif
}
int64_t taosGetsCmd(TdCmdPtr pCmd, int32_t maxSize, char* __restrict buf) {
if (pCmd == NULL || buf == NULL) {
return -1;
}
if (fgets(buf, maxSize, (FILE*)pCmd) == NULL) {
return -1;
}
return strlen(buf);
}
int64_t taosGetLineCmd(TdCmdPtr pCmd, char** __restrict ptrBuf) {
if (pCmd == NULL || ptrBuf == NULL) {
return -1;
}
if (*ptrBuf != NULL) {
taosMemoryFreeClear(*ptrBuf);
}
#ifdef WINDOWS
*ptrBuf = taosMemoryMalloc(1024);
if (*ptrBuf == NULL) return -1;
if (fgets(*ptrBuf, 1023, (FILE*)pCmd) == NULL) {
taosMemoryFreeClear(*ptrBuf);
return -1;
}
(*ptrBuf)[1023] = 0;
return strlen(*ptrBuf);
#else
size_t len = 0;
return getline(ptrBuf, &len, (FILE*)pCmd);
#endif
}
int32_t taosEOFCmd(TdCmdPtr pCmd) {
if (pCmd == NULL) {
return 0;
}
return feof((FILE*)pCmd);
}
int64_t taosCloseCmd(TdCmdPtr* ppCmd) {
if (ppCmd == NULL || *ppCmd == NULL) {
return 0;
}
#ifdef WINDOWS
_pclose((FILE*)(*ppCmd));
#else
pclose((FILE*)(*ppCmd));
#endif
*ppCmd = NULL;
return 0;
}