| Index: mozilla/nsprpub/pr/include/prlink.h
|
| ===================================================================
|
| --- mozilla/nsprpub/pr/include/prlink.h (revision 191424)
|
| +++ mozilla/nsprpub/pr/include/prlink.h (working copy)
|
| @@ -1,230 +0,0 @@
|
| -/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
| -/* This Source Code Form is subject to the terms of the Mozilla Public
|
| - * License, v. 2.0. If a copy of the MPL was not distributed with this
|
| - * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
|
| -
|
| -#ifndef prlink_h___
|
| -#define prlink_h___
|
| -
|
| -/*
|
| -** API to static and dynamic linking.
|
| -*/
|
| -#include "prtypes.h"
|
| -
|
| -PR_BEGIN_EXTERN_C
|
| -
|
| -typedef struct PRLibrary PRLibrary;
|
| -
|
| -typedef struct PRStaticLinkTable {
|
| - const char *name;
|
| - void (*fp)(void);
|
| -} PRStaticLinkTable;
|
| -
|
| -/*
|
| -** Change the default library path to the given string. The string is
|
| -** copied. This call will fail if it runs out of memory.
|
| -**
|
| -** The string provided as 'path' is copied. The caller can do whatever is
|
| -** convenient with the argument when the function is complete.
|
| -*/
|
| -NSPR_API(PRStatus) PR_SetLibraryPath(const char *path);
|
| -
|
| -/*
|
| -** Return a character string which contains the path used to search for
|
| -** dynamically loadable libraries.
|
| -**
|
| -** The returned value is basically a copy of a PR_SetLibraryPath().
|
| -** The storage is allocated by the runtime and becomes the responsibilty
|
| -** of the caller.
|
| -*/
|
| -NSPR_API(char*) PR_GetLibraryPath(void);
|
| -
|
| -/*
|
| -** Given a directory name "dir" and a library name "lib" construct a full
|
| -** path name that will refer to the actual dynamically loaded
|
| -** library. This does not test for existance of said file, it just
|
| -** constructs the full filename. The name constructed is system dependent
|
| -** and prepared for PR_LoadLibrary. The result must be free'd when the
|
| -** caller is done with it.
|
| -**
|
| -** The storage for the result is allocated by the runtime and becomes the
|
| -** responsibility of the caller.
|
| -*/
|
| -NSPR_API(char*) PR_GetLibraryName(const char *dir, const char *lib);
|
| -
|
| -/*
|
| -**
|
| -** Free the memory allocated, for the caller, by PR_GetLibraryName
|
| -*/
|
| -NSPR_API(void) PR_FreeLibraryName(char *mem);
|
| -
|
| -/*
|
| -** Given a library "name" try to load the library. The argument "name"
|
| -** is a machine-dependent name for the library, such as the full pathname
|
| -** returned by PR_GetLibraryName. If the library is already loaded,
|
| -** this function will avoid loading the library twice.
|
| -**
|
| -** If the library is loaded successfully, then a pointer to the PRLibrary
|
| -** structure representing the library is returned. Otherwise, NULL is
|
| -** returned.
|
| -**
|
| -** This increments the reference count of the library.
|
| -*/
|
| -NSPR_API(PRLibrary*) PR_LoadLibrary(const char *name);
|
| -
|
| -/*
|
| -** Each operating system has its preferred way of specifying
|
| -** a file in the file system. Most operating systems use
|
| -** a pathname. Mac OS Classic, on the other hand, uses the FSSpec
|
| -** structure to specify a file. PRLibSpec allows NSPR clients
|
| -** to use the type of file specification that is most efficient
|
| -** for a particular platform.
|
| -**
|
| -** On some operating systems such as Mac OS Classic, a shared library
|
| -** may contain code fragments that can be individually loaded.
|
| -** PRLibSpec also allows NSPR clients to identify a code fragment
|
| -** in a library, if code fragments are supported by the OS.
|
| -** A code fragment can be specified by name or by an integer index.
|
| -**
|
| -** Right now PRLibSpec supports four types of library specification:
|
| -** a pathname in the native character encoding, a Mac code fragment
|
| -** by name, a Mac code fragment by index, and a UTF-16 pathname.
|
| -*/
|
| -
|
| -typedef enum PRLibSpecType {
|
| - PR_LibSpec_Pathname,
|
| - PR_LibSpec_MacNamedFragment, /* obsolete (for Mac OS Classic) */
|
| - PR_LibSpec_MacIndexedFragment, /* obsolete (for Mac OS Classic) */
|
| - PR_LibSpec_PathnameU /* supported only on Win32 */
|
| -} PRLibSpecType;
|
| -
|
| -struct FSSpec; /* Mac OS Classic FSSpec */
|
| -
|
| -typedef struct PRLibSpec {
|
| - PRLibSpecType type;
|
| - union {
|
| - /* if type is PR_LibSpec_Pathname */
|
| - const char *pathname;
|
| -
|
| - /* if type is PR_LibSpec_MacNamedFragment */
|
| - struct {
|
| - const struct FSSpec *fsspec;
|
| - const char *name;
|
| - } mac_named_fragment; /* obsolete (for Mac OS Classic) */
|
| -
|
| - /* if type is PR_LibSpec_MacIndexedFragment */
|
| - struct {
|
| - const struct FSSpec *fsspec;
|
| - PRUint32 index;
|
| - } mac_indexed_fragment; /* obsolete (for Mac OS Classic) */
|
| -
|
| - /* if type is PR_LibSpec_PathnameU */
|
| - const PRUnichar *pathname_u; /* supported only on Win32 */
|
| - } value;
|
| -} PRLibSpec;
|
| -
|
| -/*
|
| -** The following bit flags may be or'd together and passed
|
| -** as the 'flags' argument to PR_LoadLibraryWithFlags.
|
| -** Flags not supported by the underlying OS are ignored.
|
| -*/
|
| -
|
| -#define PR_LD_LAZY 0x1 /* equivalent to RTLD_LAZY on Unix */
|
| -#define PR_LD_NOW 0x2 /* equivalent to RTLD_NOW on Unix */
|
| -#define PR_LD_GLOBAL 0x4 /* equivalent to RTLD_GLOBAL on Unix */
|
| -#define PR_LD_LOCAL 0x8 /* equivalent to RTLD_LOCAL on Unix */
|
| -/* The following is equivalent to LOAD_WITH_ALTERED_SEARCH_PATH on Windows */
|
| -#define PR_LD_ALT_SEARCH_PATH 0x10
|
| -/* 0x8000 reserved for NSPR internal use */
|
| -
|
| -/*
|
| -** Load the specified library, in the manner specified by 'flags'.
|
| -*/
|
| -
|
| -NSPR_API(PRLibrary *)
|
| -PR_LoadLibraryWithFlags(
|
| - PRLibSpec libSpec, /* the shared library */
|
| - PRIntn flags /* flags that affect the loading */
|
| -);
|
| -
|
| -/*
|
| -** Unload a previously loaded library. If the library was a static
|
| -** library then the static link table will no longer be referenced. The
|
| -** associated PRLibrary object is freed.
|
| -**
|
| -** PR_FAILURE is returned if the library cannot be unloaded.
|
| -**
|
| -** This function decrements the reference count of the library.
|
| -*/
|
| -NSPR_API(PRStatus) PR_UnloadLibrary(PRLibrary *lib);
|
| -
|
| -/*
|
| -** Given the name of a procedure, return the address of the function that
|
| -** implements the procedure, or NULL if no such function can be
|
| -** found. This does not find symbols in the main program (the ".exe");
|
| -** use PR_LoadStaticLibrary to register symbols in the main program.
|
| -**
|
| -** This function does not modify the reference count of the library.
|
| -*/
|
| -NSPR_API(void*) PR_FindSymbol(PRLibrary *lib, const char *name);
|
| -
|
| -/*
|
| -** Similar to PR_FindSymbol, except that the return value is a pointer to
|
| -** a function, and not a pointer to void. Casting between a data pointer
|
| -** and a function pointer is not portable according to the C standard.
|
| -** Any function pointer can be cast to any other function pointer.
|
| -**
|
| -** This function does not modify the reference count of the library.
|
| -*/
|
| -typedef void (*PRFuncPtr)(void);
|
| -NSPR_API(PRFuncPtr) PR_FindFunctionSymbol(PRLibrary *lib, const char *name);
|
| -
|
| -/*
|
| -** Finds a symbol in one of the currently loaded libraries. Given the
|
| -** name of a procedure, return the address of the function that
|
| -** implements the procedure, and return the library that contains that
|
| -** symbol, or NULL if no such function can be found. This does not find
|
| -** symbols in the main program (the ".exe"); use PR_AddStaticLibrary to
|
| -** register symbols in the main program.
|
| -**
|
| -** This increments the reference count of the library.
|
| -*/
|
| -NSPR_API(void*) PR_FindSymbolAndLibrary(const char *name,
|
| - PRLibrary* *lib);
|
| -
|
| -/*
|
| -** Similar to PR_FindSymbolAndLibrary, except that the return value is
|
| -** a pointer to a function, and not a pointer to void. Casting between a
|
| -** data pointer and a function pointer is not portable according to the C
|
| -** standard. Any function pointer can be cast to any other function pointer.
|
| -**
|
| -** This increments the reference count of the library.
|
| -*/
|
| -NSPR_API(PRFuncPtr) PR_FindFunctionSymbolAndLibrary(const char *name,
|
| - PRLibrary* *lib);
|
| -
|
| -/*
|
| -** Register a static link table with the runtime under the name
|
| -** "name". The symbols present in the static link table will be made
|
| -** available to PR_FindSymbol. If "name" is null then the symbols will be
|
| -** made available to the library which represents the executable. The
|
| -** tables are not copied.
|
| -**
|
| -** Returns the library object if successful, null otherwise.
|
| -**
|
| -** This increments the reference count of the library.
|
| -*/
|
| -NSPR_API(PRLibrary*) PR_LoadStaticLibrary(
|
| - const char *name, const PRStaticLinkTable *table);
|
| -
|
| -/*
|
| -** Return the pathname of the file that the library "name" was loaded
|
| -** from. "addr" is the address of a function defined in the library.
|
| -**
|
| -** The caller is responsible for freeing the result with PR_Free.
|
| -*/
|
| -NSPR_API(char *) PR_GetLibraryFilePathname(const char *name, PRFuncPtr addr);
|
| -
|
| -PR_END_EXTERN_C
|
| -
|
| -#endif /* prlink_h___ */
|
|
|