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469 lines
9.7 KiB
469 lines
9.7 KiB
/*++
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Copyright (c) 1994 Microsoft Corporation
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Module Name:
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thrdinfo.h
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Abstract:
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Per-thread structure definitions/macros
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Author:
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Richard L Firth (rfirth) 16-Feb-1995
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Revision History:
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16-Feb-1995 rfirth
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Created
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--*/
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#if defined(__cplusplus)
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extern "C" {
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#endif
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//
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// manifests
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//
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#define INTERNET_THREAD_INFO_SIGNATURE 'drhT' // "Thrd"
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//
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// forward references
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//
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class CFsm;
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//
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// types
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//
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//
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// INTERNET_THREAD_INFO - per-thread information, handily referenced via a TLS
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// slot
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//
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typedef struct _INTERNET_THREAD_INFO {
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//
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// List - doubly linked list that we delete on DLL_PROCESS_DETACH
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//
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LIST_ENTRY List;
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#if INET_DEBUG
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//
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// Signature - lets us know that this structure is probably an
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// INTERNET_THREAD_INFO
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//
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DWORD Signature;
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#endif
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//
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// ThreadId - used to identify this thread within a process
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//
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DWORD ThreadId;
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//
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// ErrorNumber - arbitrary error code, supplied in InternetSetLastError
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//
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DWORD ErrorNumber;
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//
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// hErrorText - we store the last error text on a per-thread basis. This
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// handle identifies a moveable buffer
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//
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HLOCAL hErrorText;
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//
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// ErrorTextLength - length of the error text in hErrorText
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//
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DWORD ErrorTextLength;
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//
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// hObject - the current Internet object handle being used in this API. We
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// need this to maintain context e.g. when we want to get timeout values
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//
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HINTERNET hObject;
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//
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// hObjectMapped - this is the address of the real object mapped to hObject
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//
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HINTERNET hObjectMapped;
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//
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// IsAsyncWorkerThread - TRUE if this thread is an async worker thread
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//
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BOOL IsAsyncWorkerThread;
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//
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// InCallback - TRUE if we have made an app callback. Used to detect
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// re-entrancy
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//
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BOOL InCallback;
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//
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// fExitThread - This is the last thread we're waiting for termination of.
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//
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BOOL fExitThread;
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//
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// NestedRequests - incremented when we detect that we're processing an API
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// in the async worker thread context. If this API then calls other APIs,
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// then we need to treat (mapped) handles differently in the called APIs
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//
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DWORD NestedRequests;
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//
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// dwMappedErrorCode - the real error code returned by e.g. a winsock API,
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// before it was mapped to a WinInet error
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//
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DWORD dwMappedErrorCode;
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//
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// Fsm - currently executing Finite State Machine
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//
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CFsm * Fsm;
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#ifdef ENABLE_DEBUG
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//
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// IsAsyncSchedulerThread - TRUE if this INTERNET_THREAD_INFO belongs to the
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// one-and-only async scheduler thread
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//
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BOOL IsAsyncSchedulerThread;
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//
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// per-thread debug variables
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//
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//
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// Pointer to LIFO (stack) of INTERNET_DEBUG_RECORDs. Used to generate
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// indented call-tracing for diagnostics
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//
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LPINTERNET_DEBUG_RECORD Stack;
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//
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// CallDepth - nesting level for calls
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//
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int CallDepth;
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//
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// IndentIncrement - the current indent level. Number of spaces
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//
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int IndentIncrement;
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//
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// StartTime and StopTime - used for timing calls to e.g. send(), recv()
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//
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DWORD StartTime;
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DWORD StopTime;
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DWORD MajorCategoryFlags;
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DWORD MinorCategoryFlags;
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#endif // #ifdef ENABLE_DEBUG
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} INTERNET_THREAD_INFO, *LPINTERNET_THREAD_INFO;
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//
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// macros
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//
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//
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// InternetClearLastError - frees the response text buffer for this thread
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//
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#define InternetClearLastError() \
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InternetSetLastError(0, NULL, 0, 0)
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//
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// InternetResetObjectHandle - resets the per-thread current object handle
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//
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#define InternetResetObjectHandle() \
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InternetSetObjectHandle(NULL)
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//
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// _InternetIncNestingCount - increments nesting level count
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//
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#define _InternetIncNestingCount() \
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lpThreadInfo->NestedRequests++;
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// ** debug version
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//#define _InternetIncNestingCount() \
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// if ( lpThreadInfo->NestedRequests > 0xffff ) { \
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// OutputDebugString("InternetIncNestingCount, inc over threshold, contact arthurbi, x68073 (sechs)\n"); \
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// DebugBreak(); \
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// } \
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// lpThreadInfo->NestedRequests++;
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//
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// _InternetDecNestingCount - decrements nesting level count
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//
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#define _InternetDecNestingCount(dwNestingLevel) \
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lpThreadInfo->NestedRequests -= dwNestingLevel;
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// ** debug version
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//#define _InternetDecNestingCount(dwNestingLevel) \
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// if ( lpThreadInfo->NestedRequests == 0 ) { \
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// OutputDebugString("InternetDecNestingCount, attempting to dec 0, contact arthurbi, x68073 (sieben)\n"); \
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// DebugBreak(); \
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// } \
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// if ( dwNestingLevel != 1 && dwNestingLevel != 0 ) { \
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// OutputDebugString("InternetDecNestingCount, invalid nesting level, contact arthurbi, x68073 (acht)\n"); \
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// DebugBreak(); \
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// } \
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// lpThreadInfo->NestedRequests -= dwNestingLevel;
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//
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// _InternetSetObjectHandle - set the object handle given the thread info block
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//
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#define _InternetSetObjectHandle(lpThreadInfo, hInternet, hMapped) \
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DEBUG_PRINT(HTTP, \
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INFO, \
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("Setting new obj handle on thrd=%x, old=%x, new=%x (map: old=%x, new=%x)\n", \
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lpThreadInfo, \
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lpThreadInfo->hObject, \
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hInternet, \
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lpThreadInfo->hObjectMapped, \
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hMapped \
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)); \
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lpThreadInfo->hObject = hInternet; \
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lpThreadInfo->hObjectMapped = hMapped;
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//
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// _InternetClearLastError - clear the last error info given the thread info
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// block
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//
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#define _InternetClearLastError(lpThreadInfo) \
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_InternetSetLastError(lpThreadInfo, 0, NULL, 0, 0)
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//
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// _InternetResetObjectHandle - clear the object handle given the thread info
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// block
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//
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#define _InternetResetObjectHandle(lpThreadInfo) \
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_InternetSetObjectHandle(lpThreadInfo, NULL, NULL)
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//
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// _InternetGetObjectHandle - retrieves the object handle from the per-thread
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// info block
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//
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#define _InternetGetObjectHandle(lpThreadInfo) \
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lpThreadInfo->hObject
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//
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// _InternetGetMappedObjectHandle - retrieves the mapped object handle from the
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// per-thread info block
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//
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#define _InternetGetMappedObjectHandle(lpThreadInfo) \
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lpThreadInfo->hObjectMapped
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//
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// InternetDisableAsync - turns off the async worker thread indication in the
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// thread info block
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//
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#define _InternetDisableAsync(lpThreadInfo) \
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_InternetSetAsync(FALSE)
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//
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// InternetEnableAsync - turns off the async worker thread indication in the
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// thread info block
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//
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#define _InternetEnableAsync(lpThreadInfo, Val) \
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_InternetSetAsync(TRUE)
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//
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// _InternetGetAsync - returns the async worker thread indication from the
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// thread info block
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//
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#define _InternetGetAsync(lpThreadInfo) \
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lpThreadInfo->IsAsyncWorkerThread
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//
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// _InternetSetAsync - turns on or off the async worker thread indication in the
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// thread info block
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//
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#define _InternetSetAsync(lpThreadInfo, Val) \
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lpThreadInfo->IsAsyncWorkerThread = Val
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#define _InternetGetInCallback(lpThreadInfo) \
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lpThreadInfo->InCallback
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#define _InternetSetInCallback(lpThreadInfo) \
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lpThreadInfo->InCallback = TRUE
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#define _InternetResetInCallback(lpThreadInfo) \
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lpThreadInfo->InCallback = FALSE
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#if INET_DEBUG
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#define CHECK_INTERNET_THREAD_INFO(lpThreadInfo) \
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INET_ASSERT(lpThreadInfo->Signature == INTERNET_THREAD_INFO_SIGNATURE)
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#else
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#define CHECK_INTERNET_THREAD_INFO(lpThreadInfo) \
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/* NOTHING */
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#endif
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//
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// prototypes
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//
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#define UI_ACTION_CODE_NONE_TAKEN 0
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#define UI_ACTION_CODE_BLOCKED_FOR_INTERNET_HANDLE 1
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#define UI_ACTION_CODE_BLOCKED_FOR_USER_INPUT 2
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#define UI_ACTION_CODE_USER_ACTION_COMPLETED 3
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LPINTERNET_THREAD_INFO
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InternetCreateThreadInfo(
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IN BOOL SetTls
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);
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VOID
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InternetDestroyThreadInfo(
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VOID
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);
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VOID
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InternetFreeThreadInfo(
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IN LPINTERNET_THREAD_INFO lpThreadInfo
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);
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VOID
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InternetTerminateThreadInfo(
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VOID
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);
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LPINTERNET_THREAD_INFO
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InternetGetThreadInfo(
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VOID
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);
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VOID
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InternetSetThreadInfo(
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IN LPINTERNET_THREAD_INFO lpThreadInfo
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);
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DWORD
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InternetIndicateStatusAddress(
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IN DWORD dwInternetStatus,
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IN LPSOCKADDR lpSockAddr,
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IN DWORD dwSockAddrLength
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);
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DWORD
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InternetIndicateStatusString(
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IN DWORD dwInternetStatus,
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IN LPSTR lpszStatusInfo,
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IN BOOL bCopyBuffer=FALSE,
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IN BOOL bConvertToUnicode=TRUE
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);
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DWORD
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InternetIndicateStatus(
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IN DWORD dwInternetStatus,
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IN LPVOID lpBuffer,
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IN DWORD dwBufferLength,
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IN BOOL bCopyBuffer=FALSE,
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IN BOOL bConvertToUnicode=FALSE
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);
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DWORD
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InternetIndicateStatusNewHandle(
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IN LPVOID hInternetMapped
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);
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DWORD
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InternetSetLastError(
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IN DWORD ErrorNumber,
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IN LPSTR ErrorText,
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IN DWORD ErrorTextLength,
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IN DWORD Flags
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);
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#define SLE_APPEND 0x00000001
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#define SLE_ZERO_TERMINATE 0x00000002
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DWORD
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_InternetSetLastError(
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IN LPINTERNET_THREAD_INFO lpThreadInfo,
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IN DWORD ErrorNumber,
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IN LPSTR ErrorText,
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IN DWORD ErrorTextLength,
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IN DWORD Flags
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);
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LPSTR
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InternetLockErrorText(
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VOID
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);
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VOID
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InternetUnlockErrorText(
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VOID
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);
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VOID
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InternetSetObjectHandle(
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IN HINTERNET hInternet,
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IN HINTERNET hInternetMapped
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);
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HINTERNET
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InternetGetObjectHandle(
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VOID
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);
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HINTERNET
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InternetGetMappedObjectHandle(
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VOID
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);
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//
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// external data
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//
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extern SERIALIZED_LIST ThreadInfoList;
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#if defined(__cplusplus)
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}
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#endif
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