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kernel_liteos_a
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分支优化 

去除不必要分支，使用三元操作符优化简单分支
Signed-off-by: lcjh <120989324@qq.com>
This commit is contained in:
lcjh 2021-12-11 00:25:29 +08:00
parent 9b397173fe
commit 2ada41c826
1 changed files with 23 additions and 100 deletions
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123
kernel/common/console.c
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@ -154,20 +154,12 @@ STATIC UINT32 ConsoleRefcountGet(const CONSOLE_CB *consoleCB)
STATIC VOID ConsoleRefcountSet(CONSOLE_CB *consoleCB, BOOL flag)
{
if (flag == TRUE) {
++(consoleCB->refCount);
} else {
--(consoleCB->refCount);
}
(consoleCB->refCount) += flag ? 1 : -1;
}
BOOL IsConsoleOccupied(const CONSOLE_CB *consoleCB)
{
if (ConsoleRefcountGet(consoleCB) != FALSE) {
return TRUE;
} else {
return FALSE;
}
return ConsoleRefcountGet(consoleCB);
}
STATIC INT32 ConsoleCtrlCaptureLine(CONSOLE_CB *consoleCB)
@ -294,10 +286,7 @@ STATIC INT32 OsConsoleFullpathToID(const CHAR *fullpath)
STATIC BOOL ConsoleFifoEmpty(const CONSOLE_CB *console)
{
if (console->fifoOut == console->fifoIn) {
return TRUE;
}
return FALSE;
return console->fifoOut == console->fifoIn;
}
STATIC VOID ConsoleFifoClearup(CONSOLE_CB *console)
@ -343,10 +332,7 @@ INT32 FilepOpen(struct file *filep, const struct file_operations_vfs *fops)
* corresponding to filep of /dev/console)
*/
ret = fops->open(filep);
if (ret < 0) {
return -EPERM;
}
return ret;
return (ret < 0) ? -EPERM : ret;
}
STATIC INLINE VOID UserEndOfRead(CONSOLE_CB *consoleCB, struct file *filep,
@ -468,10 +454,7 @@ STATIC INT32 UserFilepRead(CONSOLE_CB *consoleCB, struct file *filep, const stru
/* Non-ICANON mode */
if ((consoleCB->consoleTermios.c_lflag & ICANON) == 0) {
ret = fops->read(filep, buffer, bufLen);
if (ret < 0) {
return -EPERM;
}
return ret;
return (ret < 0) ? -EPERM : ret;
}
/* ICANON mode: store data to console buffer, read data and stored data into console fifo */
if (consoleCB->currentLen == 0) {
@ -524,10 +507,7 @@ INT32 FilepRead(struct file *filep, const struct file_operations_vfs *fops, CHAR
* corresponding to filep of /dev/console)
*/
ret = fops->read(filep, buffer, bufLen);
if (ret < 0) {
return -EPERM;
}
return ret;
return (ret < 0) ? -EPERM : ret;
}
INT32 FilepWrite(struct file *filep, const struct file_operations_vfs *fops, const CHAR *buffer, size_t bufLen)
@ -538,10 +518,7 @@ INT32 FilepWrite(struct file *filep, const struct file_operations_vfs *fops, con
}
ret = fops->write(filep, buffer, bufLen);
if (ret < 0) {
return -EPERM;
}
return ret;
return (ret < 0) ? -EPERM : ret;
}
INT32 FilepClose(struct file *filep, const struct file_operations_vfs *fops)
@ -556,10 +533,7 @@ INT32 FilepClose(struct file *filep, const struct file_operations_vfs *fops)
* corresponding to filep of /dev/console)
*/
ret = fops->close(filep);
if (ret < 0) {
return -EPERM;
}
return ret;
return ret < 0 ? -EPERM : ret;
}
INT32 FilepIoctl(struct file *filep, const struct file_operations_vfs *fops, INT32 cmd, unsigned long arg)
@ -570,10 +544,7 @@ INT32 FilepIoctl(struct file *filep, const struct file_operations_vfs *fops, INT
}
ret = fops->ioctl(filep, cmd, arg);
if (ret < 0) {
return -EPERM;
}
return ret;
return (ret < 0) ? -EPERM : ret;
}
INT32 FilepPoll(struct file *filep, const struct file_operations_vfs *fops, poll_table *fds)
@ -588,10 +559,7 @@ INT32 FilepPoll(struct file *filep, const struct file_operations_vfs *fops, poll
* corresponding to filep of /dev/serial)
*/
ret = fops->poll(filep, fds);
if (ret < 0) {
return -EPERM;
}
return ret;
return (ret < 0) ? -EPERM : ret;
}
STATIC INT32 ConsoleOpen(struct file *filep)
@ -855,10 +823,8 @@ STATIC INT32 ConsoleGetWinSize(unsigned long arg)
.ws_row = DEFAULT_WINDOW_SIZE_ROW
};
if (LOS_CopyFromKernel((VOID *)arg, sizeof(struct winsize), &kws, sizeof(struct winsize)) != 0) {
return -EFAULT;
}
return LOS_OK;
return (LOS_CopyFromKernel((VOID *)arg, sizeof(struct winsize), &kws, sizeof(struct winsize)) != 0) ?
-EFAULT : LOS_OK;
}
STATIC INT32 ConsoleGetTermios(unsigned long arg)
@ -876,11 +842,8 @@ STATIC INT32 ConsoleGetTermios(unsigned long arg)
return -EFAULT;
}
if (LOS_ArchCopyToUser((VOID *)arg, &consoleCB->consoleTermios, sizeof(struct termios)) != 0) {
return -EFAULT;
} else {
return LOS_OK;
}
return (LOS_ArchCopyToUser((VOID *)arg, &consoleCB->consoleTermios, sizeof(struct termios)) != 0) ?
-EFAULT : LOS_OK;
}
INT32 ConsoleSetPgrp(CONSOLE_CB *consoleCB, unsigned long arg)
@ -893,10 +856,7 @@ INT32 ConsoleSetPgrp(CONSOLE_CB *consoleCB, unsigned long arg)
INT32 ConsoleGetPgrp(CONSOLE_CB *consoleCB, unsigned long arg)
{
if (LOS_ArchCopyToUser((VOID *)arg, &consoleCB->pgrpId, sizeof(INT32)) != 0) {
return -EFAULT;
}
return LOS_OK;
return (LOS_ArchCopyToUser((VOID *)arg, &consoleCB->pgrpId, sizeof(INT32)) != 0) ? -EFAULT : LOS_OK;
}
STATIC INT32 ConsoleIoctl(struct file *filep, INT32 cmd, unsigned long arg)
@ -1201,11 +1161,7 @@ STATIC UINT32 OsConsoleBufInit(CONSOLE_CB *consoleCB)
initParam.usTaskPrio = SHELL_TASK_PRIORITY;
initParam.auwArgs[0] = (UINTPTR)consoleCB;
initParam.uwStackSize = LOSCFG_BASE_CORE_TSK_DEFAULT_STACK_SIZE;
if (consoleCB->consoleID == CONSOLE_SERIAL) {
initParam.pcName = "SendToSer";
} else {
initParam.pcName = "SendToTelnet";
}
initParam.pcName = (consoleCB->consoleID == CONSOLE_SERIAL) ? "SendToSer" : "SendToTelnet";
initParam.uwResved = LOS_TASK_STATUS_DETACHED;
ret = LOS_TaskCreate(&consoleCB->sendTaskID, &initParam);
@ -1429,10 +1385,7 @@ BOOL ConsoleEnable(VOID)
if (consoleID == 0) {
return FALSE;
} else if ((consoleID == CONSOLE_TELNET) || (consoleID == CONSOLE_SERIAL)) {
if ((OsGetSystemStatus() == OS_SYSTEM_NORMAL) && !OsPreemptable()) {
return FALSE;
}
return TRUE;
return ((OsGetSystemStatus() == OS_SYSTEM_NORMAL) && !OsPreemptable()) ? FALSE : TRUE;
}
#if defined (LOSCFG_DRIVERS_USB_SERIAL_GADGET) || defined (LOSCFG_DRIVERS_USB_ETH_SER_GADGET)
else if ((SerialTypeGet() == SERIAL_TYPE_USBTTY_DEV) && (userial_mask_get() == 1)) {
@ -1468,69 +1421,43 @@ INT32 ConsoleTaskReg(INT32 consoleID, UINT32 taskID)
return LOS_OK;
}
LOS_SpinUnlockRestore(&g_consoleSpin, intSave);
return g_console[consoleID - 1]->shellEntryId == taskID ? LOS_OK : LOS_NOK;
return (g_console[consoleID - 1]->shellEntryId == taskID) ? LOS_OK : LOS_NOK;
}
BOOL SetSerialNonBlock(const CONSOLE_CB *consoleCB)
{
INT32 ret;
if (consoleCB == NULL) {
PRINT_ERR("%s: Input parameter is illegal\n", __FUNCTION__);
return FALSE;
}
ret = ioctl(consoleCB->fd, CONSOLE_CMD_RD_BLOCK_SERIAL, CONSOLE_RD_NONBLOCK);
if (ret != 0) {
return FALSE;
}
return TRUE;
return ioctl(consoleCB->fd, CONSOLE_CMD_RD_BLOCK_SERIAL, CONSOLE_RD_NONBLOCK) == 0;
}
BOOL SetSerialBlock(const CONSOLE_CB *consoleCB)
{
INT32 ret;
if (consoleCB == NULL) {
PRINT_ERR("%s: Input parameter is illegal\n", __FUNCTION__);
return TRUE;
}
ret = ioctl(consoleCB->fd, CONSOLE_CMD_RD_BLOCK_SERIAL, CONSOLE_RD_BLOCK);
if (ret != 0) {
return TRUE;
}
return FALSE;
return ioctl(consoleCB->fd, CONSOLE_CMD_RD_BLOCK_SERIAL, CONSOLE_RD_BLOCK) != 0;
}
BOOL SetTelnetNonBlock(const CONSOLE_CB *consoleCB)
{
INT32 ret;
if (consoleCB == NULL) {
PRINT_ERR("%s: Input parameter is illegal\n", __FUNCTION__);
return FALSE;
}
ret = ioctl(consoleCB->fd, CONSOLE_CMD_RD_BLOCK_TELNET, CONSOLE_RD_NONBLOCK);
if (ret != 0) {
return FALSE;
}
return TRUE;
return ioctl(consoleCB->fd, CONSOLE_CMD_RD_BLOCK_TELNET, CONSOLE_RD_NONBLOCK) == 0;
}
BOOL SetTelnetBlock(const CONSOLE_CB *consoleCB)
{
INT32 ret;
if (consoleCB == NULL) {
PRINT_ERR("%s: Input parameter is illegal\n", __FUNCTION__);
return TRUE;
}
ret = ioctl(consoleCB->fd, CONSOLE_CMD_RD_BLOCK_TELNET, CONSOLE_RD_BLOCK);
if (ret != 0) {
return TRUE;
}
return FALSE;
return ioctl(consoleCB->fd, CONSOLE_CMD_RD_BLOCK_TELNET, CONSOLE_RD_BLOCK) != 0;
}
BOOL is_nonblock(const CONSOLE_CB *consoleCB)
@ -1567,11 +1494,7 @@ INT32 ConsoleUpdateFd(VOID)
}
}
if (g_console[consoleID - 1] == NULL) {
return -1;
}
return g_console[consoleID - 1]->fd;
return (g_console[consoleID - 1] != NULL) ? g_console[consoleID - 1]->fd : -1;
}
CONSOLE_CB *OsGetConsoleByID(INT32 consoleID)