diff options
Diffstat (limited to 'MdePkg/Library/BasePerformanceLibNull/PerformanceLib.c')
| -rw-r--r-- | MdePkg/Library/BasePerformanceLibNull/PerformanceLib.c | 306 |
1 files changed, 306 insertions, 0 deletions
diff --git a/MdePkg/Library/BasePerformanceLibNull/PerformanceLib.c b/MdePkg/Library/BasePerformanceLibNull/PerformanceLib.c new file mode 100644 index 000000000000..d4f5e0898538 --- /dev/null +++ b/MdePkg/Library/BasePerformanceLibNull/PerformanceLib.c @@ -0,0 +1,306 @@ +/** @file + Base Performance Library which provides no service. + + Copyright (c) 2006 - 2012, Intel Corporation. All rights reserved.<BR> + This program and the accompanying materials + are licensed and made available under the terms and conditions of the BSD License + which accompanies this distribution. The full text of the license may be found at + http://opensource.org/licenses/bsd-license.php. + + THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, + WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. + +**/ + + +#include <Base.h> + + +#include <Library/PerformanceLib.h> +#include <Library/DebugLib.h> +#include <Library/PcdLib.h> + +/** + Creates a record for the beginning of a performance measurement. + + Creates a record that contains the Handle, Token, and Module. + If TimeStamp is not zero, then TimeStamp is added to the record as the start time. + If TimeStamp is zero, then this function reads the current time stamp + and adds that time stamp value to the record as the start time. + + @param Handle The pointer to environment specific context used + to identify the component being measured. + @param Token The pointer to a Null-terminated ASCII string + that identifies the component being measured. + @param Module The pointer to a Null-terminated ASCII string + that identifies the module being measured. + @param TimeStamp 64-bit time stamp. + + @retval RETURN_SUCCESS The start of the measurement was recorded. + @retval RETURN_OUT_OF_RESOURCES There are not enough resources to record the measurement. + @retval RETURN_DEVICE_ERROR A device error reading the time stamp. + +**/ +RETURN_STATUS +EFIAPI +StartPerformanceMeasurement ( + IN CONST VOID *Handle, OPTIONAL + IN CONST CHAR8 *Token, OPTIONAL + IN CONST CHAR8 *Module, OPTIONAL + IN UINT64 TimeStamp + ) +{ + return RETURN_SUCCESS; +} + +/** + Fills in the end time of a performance measurement. + + Looks up the record that matches Handle, Token, and Module. + If the record can not be found then return RETURN_NOT_FOUND. + If the record is found and TimeStamp is not zero, + then TimeStamp is added to the record as the end time. + If the record is found and TimeStamp is zero, then this function reads + the current time stamp and adds that time stamp value to the record as the end time. + + @param Handle The pointer to environment specific context used + to identify the component being measured. + @param Token The pointer to a Null-terminated ASCII string + that identifies the component being measured. + @param Module The pointer to a Null-terminated ASCII string + that identifies the module being measured. + @param TimeStamp 64-bit time stamp. + + @retval RETURN_SUCCESS The end of the measurement was recorded. + @retval RETURN_NOT_FOUND The specified measurement record could not be found. + @retval RETURN_DEVICE_ERROR A device error reading the time stamp. + +**/ +RETURN_STATUS +EFIAPI +EndPerformanceMeasurement ( + IN CONST VOID *Handle, OPTIONAL + IN CONST CHAR8 *Token, OPTIONAL + IN CONST CHAR8 *Module, OPTIONAL + IN UINT64 TimeStamp + ) +{ + return RETURN_SUCCESS; +} + +/** + Attempts to retrieve a performance measurement log entry from the performance measurement log. + It can also retrieve the log created by StartPerformanceMeasurementEx and EndPerformanceMeasurementEx, + and then eliminate the Identifier. + + Attempts to retrieve the performance log entry specified by LogEntryKey. If LogEntryKey is + zero on entry, then an attempt is made to retrieve the first entry from the performance log, + and the key for the second entry in the log is returned. If the performance log is empty, + then no entry is retrieved and zero is returned. If LogEntryKey is not zero, then the performance + log entry associated with LogEntryKey is retrieved, and the key for the next entry in the log is + returned. If LogEntryKey is the key for the last entry in the log, then the last log entry is + retrieved and an implementation specific non-zero key value that specifies the end of the performance + log is returned. If LogEntryKey is equal this implementation specific non-zero key value, then no entry + is retrieved and zero is returned. In the cases where a performance log entry can be returned, + the log entry is returned in Handle, Token, Module, StartTimeStamp, and EndTimeStamp. + If LogEntryKey is not a valid log entry key for the performance measurement log, then ASSERT(). + If Handle is NULL, then ASSERT(). + If Token is NULL, then ASSERT(). + If Module is NULL, then ASSERT(). + If StartTimeStamp is NULL, then ASSERT(). + If EndTimeStamp is NULL, then ASSERT(). + + @param LogEntryKey On entry, the key of the performance measurement log entry to retrieve. + 0, then the first performance measurement log entry is retrieved. + On exit, the key of the next performance lof entry entry. + @param Handle The pointer to environment specific context used to identify the component + being measured. + @param Token The pointer to a Null-terminated ASCII string that identifies the component + being measured. + @param Module The pointer to a Null-terminated ASCII string that identifies the module + being measured. + @param StartTimeStamp The pointer to the 64-bit time stamp that was recorded when the measurement + was started. + @param EndTimeStamp The pointer to the 64-bit time stamp that was recorded when the measurement + was ended. + + @return The key for the next performance log entry (in general case). + +**/ +UINTN +EFIAPI +GetPerformanceMeasurement ( + IN UINTN LogEntryKey, + OUT CONST VOID **Handle, + OUT CONST CHAR8 **Token, + OUT CONST CHAR8 **Module, + OUT UINT64 *StartTimeStamp, + OUT UINT64 *EndTimeStamp + ) +{ + ASSERT (Handle != NULL); + ASSERT (Token != NULL); + ASSERT (Module != NULL); + ASSERT (StartTimeStamp != NULL); + ASSERT (EndTimeStamp != NULL); + + return 0; +} + +/** + Creates a record for the beginning of a performance measurement. + + Creates a record that contains the Handle, Token, Module and Identifier. + If TimeStamp is not zero, then TimeStamp is added to the record as the start time. + If TimeStamp is zero, then this function reads the current time stamp + and adds that time stamp value to the record as the start time. + + @param Handle Pointer to environment specific context used + to identify the component being measured. + @param Token Pointer to a Null-terminated ASCII string + that identifies the component being measured. + @param Module Pointer to a Null-terminated ASCII string + that identifies the module being measured. + @param TimeStamp 64-bit time stamp. + @param Identifier 32-bit identifier. If the value is 0, the created record + is same as the one created by StartPerformanceMeasurement. + + @retval RETURN_SUCCESS The start of the measurement was recorded. + @retval RETURN_OUT_OF_RESOURCES There are not enough resources to record the measurement. + @retval RETURN_DEVICE_ERROR A device error reading the time stamp. + +**/ +RETURN_STATUS +EFIAPI +StartPerformanceMeasurementEx ( + IN CONST VOID *Handle, OPTIONAL + IN CONST CHAR8 *Token, OPTIONAL + IN CONST CHAR8 *Module, OPTIONAL + IN UINT64 TimeStamp, + IN UINT32 Identifier + ) +{ + return RETURN_SUCCESS; +} + +/** + Fills in the end time of a performance measurement. + + Looks up the record that matches Handle, Token, Module and Identifier. + If the record can not be found then return RETURN_NOT_FOUND. + If the record is found and TimeStamp is not zero, + then TimeStamp is added to the record as the end time. + If the record is found and TimeStamp is zero, then this function reads + the current time stamp and adds that time stamp value to the record as the end time. + + @param Handle Pointer to environment specific context used + to identify the component being measured. + @param Token Pointer to a Null-terminated ASCII string + that identifies the component being measured. + @param Module Pointer to a Null-terminated ASCII string + that identifies the module being measured. + @param TimeStamp 64-bit time stamp. + @param Identifier 32-bit identifier. If the value is 0, the found record + is same as the one found by EndPerformanceMeasurement. + + @retval RETURN_SUCCESS The end of the measurement was recorded. + @retval RETURN_NOT_FOUND The specified measurement record could not be found. + @retval RETURN_DEVICE_ERROR A device error reading the time stamp. + +**/ +RETURN_STATUS +EFIAPI +EndPerformanceMeasurementEx ( + IN CONST VOID *Handle, OPTIONAL + IN CONST CHAR8 *Token, OPTIONAL + IN CONST CHAR8 *Module, OPTIONAL + IN UINT64 TimeStamp, + IN UINT32 Identifier + ) +{ + return RETURN_SUCCESS; +} + +/** + Attempts to retrieve a performance measurement log entry from the performance measurement log. + It can also retrieve the log created by StartPerformanceMeasurement and EndPerformanceMeasurement, + and then assign the Identifier with 0. + + Attempts to retrieve the performance log entry specified by LogEntryKey. If LogEntryKey is + zero on entry, then an attempt is made to retrieve the first entry from the performance log, + and the key for the second entry in the log is returned. If the performance log is empty, + then no entry is retrieved and zero is returned. If LogEntryKey is not zero, then the performance + log entry associated with LogEntryKey is retrieved, and the key for the next entry in the log is + returned. If LogEntryKey is the key for the last entry in the log, then the last log entry is + retrieved and an implementation specific non-zero key value that specifies the end of the performance + log is returned. If LogEntryKey is equal this implementation specific non-zero key value, then no entry + is retrieved and zero is returned. In the cases where a performance log entry can be returned, + the log entry is returned in Handle, Token, Module, StartTimeStamp, EndTimeStamp and Identifier. + If LogEntryKey is not a valid log entry key for the performance measurement log, then ASSERT(). + If Handle is NULL, then ASSERT(). + If Token is NULL, then ASSERT(). + If Module is NULL, then ASSERT(). + If StartTimeStamp is NULL, then ASSERT(). + If EndTimeStamp is NULL, then ASSERT(). + If Identifier is NULL, then ASSERT(). + + @param LogEntryKey On entry, the key of the performance measurement log entry to retrieve. + 0, then the first performance measurement log entry is retrieved. + On exit, the key of the next performance lof entry entry. + @param Handle Pointer to environment specific context used to identify the component + being measured. + @param Token Pointer to a Null-terminated ASCII string that identifies the component + being measured. + @param Module Pointer to a Null-terminated ASCII string that identifies the module + being measured. + @param StartTimeStamp Pointer to the 64-bit time stamp that was recorded when the measurement + was started. + @param EndTimeStamp Pointer to the 64-bit time stamp that was recorded when the measurement + was ended. + @param Identifier Pointer to the 32-bit identifier that was recorded. + + @return The key for the next performance log entry (in general case). + +**/ +UINTN +EFIAPI +GetPerformanceMeasurementEx ( + IN UINTN LogEntryKey, + OUT CONST VOID **Handle, + OUT CONST CHAR8 **Token, + OUT CONST CHAR8 **Module, + OUT UINT64 *StartTimeStamp, + OUT UINT64 *EndTimeStamp, + OUT UINT32 *Identifier + ) +{ + ASSERT (Handle != NULL); + ASSERT (Token != NULL); + ASSERT (Module != NULL); + ASSERT (StartTimeStamp != NULL); + ASSERT (EndTimeStamp != NULL); + ASSERT (Identifier != NULL); + + return 0; +} + +/** + Returns TRUE if the performance measurement macros are enabled. + + This function returns TRUE if the PERFORMANCE_LIBRARY_PROPERTY_MEASUREMENT_ENABLED bit of + PcdPerformanceLibraryPropertyMask is set. Otherwise FALSE is returned. + + @retval TRUE The PERFORMANCE_LIBRARY_PROPERTY_MEASUREMENT_ENABLED bit of + PcdPerformanceLibraryPropertyMask is set. + @retval FALSE The PERFORMANCE_LIBRARY_PROPERTY_MEASUREMENT_ENABLED bit of + PcdPerformanceLibraryPropertyMask is clear. + +**/ +BOOLEAN +EFIAPI +PerformanceMeasurementEnabled ( + VOID + ) +{ + return (BOOLEAN) ((PcdGet8(PcdPerformanceLibraryPropertyMask) & PERFORMANCE_LIBRARY_PROPERTY_MEASUREMENT_ENABLED) != 0); +} |