NVTX C API Reference v3
NVIDIA Tools Extension Library
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Data Structures | Macros | Typedefs | Enumerations
nvToolsExt.h File Reference
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Data Structures

union  nvtxMessageValue_t
 
struct  nvtxEventAttributes_t
 Event Attribute Structure. . More...
 
union  nvtxEventAttributes_t::payload_t
 Payload assigned to this event.. More...
 
struct  nvtxResourceAttributes_t
 Resource Attribute Structure. . More...
 
union  nvtxResourceAttributes_t::identifier_t
 Identifier for the resource. . More...
 

Macros

#define NVTX_VERSION   3
 
#define NVTX_API
 
#define NVTX_INLINE_STATIC   inline static
 
#define NVTX_DECLSPEC   NVTX_INLINE_STATIC
 
#define NVTX_VERSIONED_IDENTIFIER_L3(NAME, VERSION)   NAME##_v##VERSION
 
#define NVTX_VERSIONED_IDENTIFIER_L2(NAME, VERSION)   NVTX_VERSIONED_IDENTIFIER_L3(NAME, VERSION)
 
#define NVTX_VERSIONED_IDENTIFIER(NAME)   NVTX_VERSIONED_IDENTIFIER_L2(NAME, NVTX_VERSION)
 
#define NVTX_SUCCESS   0
 
#define NVTX_FAIL   1
 
#define NVTX_ERR_INIT_LOAD_PROPERTY   2
 
#define NVTX_ERR_INIT_ACCESS_LIBRARY   3
 
#define NVTX_ERR_INIT_LOAD_LIBRARY   4
 
#define NVTX_ERR_INIT_MISSING_LIBRARY_ENTRY_POINT   5
 
#define NVTX_ERR_INIT_FAILED_LIBRARY_ENTRY_POINT   6
 
#define NVTX_ERR_NO_INJECTION_LIBRARY_AVAILABLE   7
 
#define NVTX_EVENT_ATTRIB_STRUCT_SIZE   ( (uint16_t)( sizeof(nvtxEventAttributes_t) ) )
 
#define NVTX_NO_PUSH_POP_TRACKING   ((int)-2)
 
#define NVTX_IMPL_GUARD   /* Ensure other headers cannot included directly */
 

Typedefs

typedef uint64_t nvtxRangeId_t
 
typedef struct nvtxDomainRegistration_st nvtxDomainRegistration
 
typedef nvtxDomainRegistration * nvtxDomainHandle_t
 
typedef struct nvtxStringRegistration_st nvtxStringRegistration
 
typedef nvtxStringRegistration * nvtxStringHandle_t
 

Enumerations

enum  nvtxColorType_t { NVTX_COLOR_UNKNOWN = 0 , NVTX_COLOR_ARGB = 1 }
 
enum  nvtxMessageType_t { NVTX_MESSAGE_UNKNOWN = 0 , NVTX_MESSAGE_TYPE_ASCII = 1 , NVTX_MESSAGE_TYPE_UNICODE = 2 , NVTX_MESSAGE_TYPE_REGISTERED = 3 }
 
enum  nvtxPayloadType_t {
  NVTX_PAYLOAD_UNKNOWN = 0 , NVTX_PAYLOAD_TYPE_UNSIGNED_INT64 = 1 , NVTX_PAYLOAD_TYPE_INT64 = 2 , NVTX_PAYLOAD_TYPE_DOUBLE = 3 ,
  NVTX_PAYLOAD_TYPE_UNSIGNED_INT32 = 4 , NVTX_PAYLOAD_TYPE_INT32 = 5 , NVTX_PAYLOAD_TYPE_FLOAT = 6
}
 

Functions

NVTX_DECLSPEC void NVTX_API nvtxInitialize (const void *reserved)
 Force initialization (optional) More...
 
Marker
NVTX_DECLSPEC void NVTX_API nvtxDomainMarkEx (nvtxDomainHandle_t domain, const nvtxEventAttributes_t *eventAttrib)
 Marks an instantaneous event in the application. More...
 
NVTX_DECLSPEC void NVTX_API nvtxMarkEx (const nvtxEventAttributes_t *eventAttrib)
 Marks an instantaneous event in the application. More...
 
NVTX_DECLSPEC void NVTX_API nvtxMarkA (const char *message)
 Marks an instantaneous event in the application. More...
 
NVTX_DECLSPEC void NVTX_API nvtxMarkW (const wchar_t *message)
 
Process Ranges
NVTX_DECLSPEC nvtxRangeId_t NVTX_API nvtxDomainRangeStartEx (nvtxDomainHandle_t domain, const nvtxEventAttributes_t *eventAttrib)
 Starts a process range in a domain. More...
 
NVTX_DECLSPEC nvtxRangeId_t NVTX_API nvtxRangeStartEx (const nvtxEventAttributes_t *eventAttrib)
 Starts a process range. More...
 
NVTX_DECLSPEC nvtxRangeId_t NVTX_API nvtxRangeStartA (const char *message)
 Starts a process range. More...
 
NVTX_DECLSPEC nvtxRangeId_t NVTX_API nvtxRangeStartW (const wchar_t *message)
 
NVTX_DECLSPEC void NVTX_API nvtxDomainRangeEnd (nvtxDomainHandle_t domain, nvtxRangeId_t id)
 Ends a process range. More...
 
NVTX_DECLSPEC void NVTX_API nvtxRangeEnd (nvtxRangeId_t id)
 Ends a process range. More...
 
Thread Ranges
NVTX_DECLSPEC int NVTX_API nvtxDomainRangePushEx (nvtxDomainHandle_t domain, const nvtxEventAttributes_t *eventAttrib)
 Starts a nested thread range. More...
 
NVTX_DECLSPEC int NVTX_API nvtxRangePushEx (const nvtxEventAttributes_t *eventAttrib)
 Starts a nested thread range. More...
 
NVTX_DECLSPEC int NVTX_API nvtxRangePushA (const char *message)
 Starts a nested thread range. More...
 
NVTX_DECLSPEC int NVTX_API nvtxRangePushW (const wchar_t *message)
 
NVTX_DECLSPEC int NVTX_API nvtxDomainRangePop (nvtxDomainHandle_t domain)
 Ends a nested thread range. More...
 
NVTX_DECLSPEC int NVTX_API nvtxRangePop (void)
 Ends a nested thread range. More...
 
NVTX_DECLSPEC void NVTX_API nvtxDomainResourceDestroy (nvtxResourceHandle_t resource)
 Destroy a resource object to track and associate data with OS and middleware objects. More...
 
Functions for NVTX Category Naming
NVTX_DECLSPEC void NVTX_API nvtxDomainNameCategoryA (nvtxDomainHandle_t domain, uint32_t category, const char *name)
 Annotate an NVTX category used within a domain. More...
 
NVTX_DECLSPEC void NVTX_API nvtxDomainNameCategoryW (nvtxDomainHandle_t domain, uint32_t category, const wchar_t *name)
 
NVTX_DECLSPEC void NVTX_API nvtxNameCategoryA (uint32_t category, const char *name)
 Annotate an NVTX category. More...
 
NVTX_DECLSPEC void NVTX_API nvtxNameCategoryW (uint32_t category, const wchar_t *name)
 
Functions for OS Threads Naming
NVTX_DECLSPEC void NVTX_API nvtxNameOsThreadA (uint32_t threadId, const char *name)
 Annotate an OS thread. More...
 
NVTX_DECLSPEC void NVTX_API nvtxNameOsThreadW (uint32_t threadId, const wchar_t *name)
 
NVTX_DECLSPEC nvtxStringHandle_t NVTX_API nvtxDomainRegisterStringA (nvtxDomainHandle_t domain, const char *string)
 Register a string. More...
 
NVTX_DECLSPEC nvtxStringHandle_t NVTX_API nvtxDomainRegisterStringW (nvtxDomainHandle_t domain, const wchar_t *string)
 
NVTX_DECLSPEC nvtxDomainHandle_t NVTX_API nvtxDomainCreateA (const char *name)
 Register a NVTX domain. More...
 
NVTX_DECLSPEC nvtxDomainHandle_t NVTX_API nvtxDomainCreateW (const wchar_t *name)
 
NVTX_DECLSPEC void NVTX_API nvtxDomainDestroy (nvtxDomainHandle_t domain)
 Unregister a NVTX domain. More...
 

Functions for Generic Resource Naming

enum  nvtxResourceGenericType_t {
  NVTX_RESOURCE_TYPE_UNKNOWN = 0 , NVTX_RESOURCE_TYPE_GENERIC_POINTER = NVTX_RESOURCE_MAKE_TYPE(GENERIC, 1) , NVTX_RESOURCE_TYPE_GENERIC_HANDLE = NVTX_RESOURCE_MAKE_TYPE(GENERIC, 2) , NVTX_RESOURCE_TYPE_GENERIC_THREAD_NATIVE = NVTX_RESOURCE_MAKE_TYPE(GENERIC, 3) ,
  NVTX_RESOURCE_TYPE_GENERIC_THREAD_POSIX = NVTX_RESOURCE_MAKE_TYPE(GENERIC, 4)
}
 Generic resource type for when a resource class is not available. More...
 
NVTX_DECLSPEC nvtxResourceHandle_t NVTX_API nvtxDomainResourceCreate (nvtxDomainHandle_t domain, nvtxResourceAttributes_t *attribs)
 Create a resource object to track and associate data with OS and middleware objects. More...
 

Macro Definition Documentation

◆ NVTX_API

#define NVTX_API

Definition at line 161 of file nvToolsExt.h.

◆ NVTX_DECLSPEC

#define NVTX_DECLSPEC   NVTX_INLINE_STATIC

Definition at line 178 of file nvToolsExt.h.

◆ NVTX_ERR_INIT_ACCESS_LIBRARY

#define NVTX_ERR_INIT_ACCESS_LIBRARY   3

Definition at line 222 of file nvToolsExt.h.

◆ NVTX_ERR_INIT_FAILED_LIBRARY_ENTRY_POINT

#define NVTX_ERR_INIT_FAILED_LIBRARY_ENTRY_POINT   6

Definition at line 225 of file nvToolsExt.h.

◆ NVTX_ERR_INIT_LOAD_LIBRARY

#define NVTX_ERR_INIT_LOAD_LIBRARY   4

Definition at line 223 of file nvToolsExt.h.

◆ NVTX_ERR_INIT_LOAD_PROPERTY

#define NVTX_ERR_INIT_LOAD_PROPERTY   2

Definition at line 221 of file nvToolsExt.h.

◆ NVTX_ERR_INIT_MISSING_LIBRARY_ENTRY_POINT

#define NVTX_ERR_INIT_MISSING_LIBRARY_ENTRY_POINT   5

Definition at line 224 of file nvToolsExt.h.

◆ NVTX_ERR_NO_INJECTION_LIBRARY_AVAILABLE

#define NVTX_ERR_NO_INJECTION_LIBRARY_AVAILABLE   7

Definition at line 226 of file nvToolsExt.h.

◆ NVTX_EVENT_ATTRIB_STRUCT_SIZE

#define NVTX_EVENT_ATTRIB_STRUCT_SIZE   ( (uint16_t)( sizeof(nvtxEventAttributes_t) ) )

Size of the nvtxEventAttributes_t structure.

Definition at line 231 of file nvToolsExt.h.

◆ NVTX_FAIL

#define NVTX_FAIL   1

Definition at line 220 of file nvToolsExt.h.

◆ NVTX_IMPL_GUARD

#define NVTX_IMPL_GUARD   /* Ensure other headers cannot included directly */

Definition at line 1460 of file nvToolsExt.h.

◆ NVTX_INLINE_STATIC

#define NVTX_INLINE_STATIC   inline static

Definition at line 162 of file nvToolsExt.h.

◆ NVTX_NO_PUSH_POP_TRACKING

#define NVTX_NO_PUSH_POP_TRACKING   ((int)-2)

Definition at line 233 of file nvToolsExt.h.

◆ NVTX_SUCCESS

#define NVTX_SUCCESS   0

The nvToolsExt library depends on stdint.h. If the build tool chain in use does not include stdint.h then define NVTX_STDINT_TYPES_ALREADY_DEFINED and define the following types:

  • uint8_t
  • int8_t
  • uint16_t
  • int16_t
  • uint32_t
  • int32_t
  • uint64_t
  • int64_t
  • uintptr_t
  • intptr_t

#define NVTX_STDINT_TYPES_ALREADY_DEFINED if you are using your own header file. Result Codes

Definition at line 219 of file nvToolsExt.h.

◆ NVTX_VERSION

#define NVTX_VERSION   3

Tools Extension API version

Definition at line 155 of file nvToolsExt.h.

◆ NVTX_VERSIONED_IDENTIFIER

#define NVTX_VERSIONED_IDENTIFIER (   NAME)    NVTX_VERSIONED_IDENTIFIER_L2(NAME, NVTX_VERSION)

Definition at line 185 of file nvToolsExt.h.

◆ NVTX_VERSIONED_IDENTIFIER_L2

#define NVTX_VERSIONED_IDENTIFIER_L2 (   NAME,
  VERSION 
)    NVTX_VERSIONED_IDENTIFIER_L3(NAME, VERSION)

Definition at line 184 of file nvToolsExt.h.

◆ NVTX_VERSIONED_IDENTIFIER_L3

#define NVTX_VERSIONED_IDENTIFIER_L3 (   NAME,
  VERSION 
)    NAME##_v##VERSION

Definition at line 183 of file nvToolsExt.h.

Typedef Documentation

◆ nvtxDomainHandle_t

typedef nvtxDomainRegistration* nvtxDomainHandle_t

Definition at line 249 of file nvToolsExt.h.

◆ nvtxDomainRegistration

typedef struct nvtxDomainRegistration_st nvtxDomainRegistration

Definition at line 239 of file nvToolsExt.h.

◆ nvtxRangeId_t

typedef uint64_t nvtxRangeId_t

Definition at line 235 of file nvToolsExt.h.

◆ nvtxStringHandle_t

typedef nvtxStringRegistration* nvtxStringHandle_t

Definition at line 263 of file nvToolsExt.h.

◆ nvtxStringRegistration

typedef struct nvtxStringRegistration_st nvtxStringRegistration

Definition at line 253 of file nvToolsExt.h.

Function Documentation

◆ nvtxInitialize()

NVTX_DECLSPEC void NVTX_API nvtxInitialize ( const void *  reserved)

Force initialization (optional)

Force NVTX library to initialize. The first call to any NVTX API function will automatically initialize the entire API. This can make the first call much slower than subsequent calls. In applications where the first call to NVTX may be in a performance-critical section, calling nvtxInitialize before any performance-critical sections will ensure NVTX initialization occurs at an acceptable time. Since nvtxInitialize takes no parameters and has no expected behavior besides initialization, it is convenient to add a call to nvtxInitialize in NVTX-instrumented applications that need to force earlier initialization without changing any other code. For example, if an app's first NVTX call is nvtxDomainCreate, and it is difficult to move that call earlier because the domain handle must be stored in an object only created at that point, adding a call to nvtxInitialize at the top of main() will ensure the later call to nvtxDomainCreate is as fast as possible.

Version
\NVTX_VERSION_3
Parameters
reserved- must be zero or NULL.