Mercurial > jwe > octave
view liboctave/util/oct-shlib.cc @ 21202:f7121e111991
maint: indent #ifdef blocks in liboctave and src directories.
* Array-C.cc, Array-b.cc, Array-ch.cc, Array-d.cc, Array-f.cc, Array-fC.cc,
Array-i.cc, Array-idx-vec.cc, Array-s.cc, Array-str.cc, Array-util.cc,
Array-voidp.cc, Array.cc, CColVector.cc, CDiagMatrix.cc, CMatrix.cc,
CNDArray.cc, CRowVector.cc, CSparse.cc, CSparse.h, DiagArray2.cc, MArray-C.cc,
MArray-d.cc, MArray-f.cc, MArray-fC.cc, MArray-i.cc, MArray-s.cc, MArray.cc,
MDiagArray2.cc, MSparse-C.cc, MSparse-d.cc, MSparse.h, MatrixType.cc,
PermMatrix.cc, Range.cc, Sparse-C.cc, Sparse-b.cc, Sparse-d.cc, Sparse.cc,
boolMatrix.cc, boolNDArray.cc, boolSparse.cc, chMatrix.cc, chNDArray.cc,
dColVector.cc, dDiagMatrix.cc, dMatrix.cc, dNDArray.cc, dRowVector.cc,
dSparse.cc, dSparse.h, dim-vector.cc, fCColVector.cc, fCDiagMatrix.cc,
fCMatrix.cc, fCNDArray.cc, fCRowVector.cc, fColVector.cc, fDiagMatrix.cc,
fMatrix.cc, fNDArray.cc, fRowVector.cc, idx-vector.cc, int16NDArray.cc,
int32NDArray.cc, int64NDArray.cc, int8NDArray.cc, intNDArray.cc,
uint16NDArray.cc, uint32NDArray.cc, uint64NDArray.cc, uint8NDArray.cc,
blaswrap.c, cquit.c, f77-extern.cc, f77-fcn.c, f77-fcn.h, lo-error.c, quit.cc,
quit.h, CmplxAEPBAL.cc, CmplxCHOL.cc, CmplxGEPBAL.cc, CmplxHESS.cc, CmplxLU.cc,
CmplxQR.cc, CmplxQRP.cc, CmplxSCHUR.cc, CmplxSVD.cc, CollocWt.cc, DASPK.cc,
DASRT.cc, DASSL.cc, EIG.cc, LSODE.cc, ODES.cc, Quad.cc, base-lu.cc, base-qr.cc,
dbleAEPBAL.cc, dbleCHOL.cc, dbleGEPBAL.cc, dbleHESS.cc, dbleLU.cc, dbleQR.cc,
dbleQRP.cc, dbleSCHUR.cc, dbleSVD.cc, eigs-base.cc, fCmplxAEPBAL.cc,
fCmplxCHOL.cc, fCmplxGEPBAL.cc, fCmplxHESS.cc, fCmplxLU.cc, fCmplxQR.cc,
fCmplxQRP.cc, fCmplxSCHUR.cc, fCmplxSVD.cc, fEIG.cc, floatAEPBAL.cc,
floatCHOL.cc, floatGEPBAL.cc, floatHESS.cc, floatLU.cc, floatQR.cc,
floatQRP.cc, floatSCHUR.cc, floatSVD.cc, lo-mappers.cc, lo-specfun.cc,
oct-convn.cc, oct-fftw.cc, oct-fftw.h, oct-norm.cc, oct-rand.cc,
oct-spparms.cc, randgamma.c, randmtzig.c, randpoisson.c, sparse-chol.cc,
sparse-dmsolve.cc, sparse-lu.cc, sparse-qr.cc, mx-defs.h, dir-ops.cc,
file-ops.cc, file-stat.cc, lo-sysdep.cc, mach-info.cc, oct-env.cc,
oct-group.cc, oct-openmp.h, oct-passwd.cc, oct-syscalls.cc, oct-time.cc,
oct-uname.cc, pathlen.h, sysdir.h, syswait.h, cmd-edit.cc, cmd-hist.cc,
data-conv.cc, f2c-main.c, glob-match.cc, lo-array-errwarn.cc,
lo-array-gripes.cc, lo-cutils.c, lo-cutils.h, lo-ieee.cc, lo-math.h,
lo-regexp.cc, lo-utils.cc, oct-base64.cc, oct-glob.cc, oct-inttypes.cc,
oct-inttypes.h, oct-locbuf.cc, oct-mutex.cc, oct-refcount.h, oct-rl-edit.c,
oct-rl-hist.c, oct-shlib.cc, oct-sort.cc, pathsearch.cc, singleton-cleanup.cc,
sparse-sort.cc, sparse-util.cc, statdefs.h, str-vec.cc, unwind-prot.cc,
url-transfer.cc, display-available.h, main-cli.cc, main-gui.cc, main.in.cc,
mkoctfile.in.cc, octave-config.in.cc, shared-fcns.h:
indent #ifdef blocks in liboctave and src directories.
author | Rik <rik@octave.org> |
---|---|
date | Sat, 06 Feb 2016 06:40:13 -0800 |
parents | 7cac4e7458f2 |
children | f7d1050b9b53 |
line wrap: on
line source
/* Copyright (C) 1999-2015 John W. Eaton Copyright (C) 2009 VZLU Prague This file is part of Octave. Octave is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3 of the License, or (at your option) any later version. Octave is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with Octave; see the file COPYING. If not, see <http://www.gnu.org/licenses/>. */ #ifdef HAVE_CONFIG_H # include <config.h> #endif #include <map> #if defined (HAVE_SHL_LOAD_API) # include <cerrno> # include <cstring> #endif #if defined (HAVE_DYLD_API) # include <mach-o/dyld.h> #endif extern "C" { #if defined (HAVE_DLOPEN_API) # if defined (HAVE_DLFCN_H) # include <dlfcn.h> # else extern void *dlopen (const char *, int); extern const char *dlerror (void); extern void *dlsym (void *, const char *); extern int dlclose (void *); # endif #elif defined (HAVE_SHL_LOAD_API) # include <dl.h> #elif defined (HAVE_LOADLIBRARY_API) # define WIN32_LEAN_AND_MEAN # include <windows.h> #endif } #include "file-stat.h" #include "lo-error.h" #include "oct-shlib.h" #include "str-vec.h" octave_shlib::shlib_rep::shlib_rep (const std::string& f) : count (1), file (f), tm_loaded (), fcn_names () { instances[f] = this; if (is_out_of_date ()) (*current_liboctave_warning_with_id_handler) ("Octave:warn-future-time-stamp", "timestamp on file %s is in the future", file.c_str ()); } bool octave_shlib::shlib_rep::is_out_of_date (void) const { file_stat fs (file); return (fs && fs.is_newer (tm_loaded)); } void octave_shlib::shlib_rep::fake_reload (void) { // We can't actually reload the library, but we'll pretend we did. file_stat fs (file); if (fs && fs.is_newer (tm_loaded)) { tm_loaded = fs.mtime (); (*current_liboctave_warning_with_id_handler) ("Octave:library-reload", "library %s not reloaded due to existing references", file.c_str ()); } } octave_shlib::shlib_rep * octave_shlib::shlib_rep::get_instance (const std::string& f, bool fake) { shlib_rep *retval = 0; std::map<std::string, shlib_rep *>::iterator p = instances.find (f); if (p != instances.end ()) { retval = p->second; retval->count++; if (fake) retval->fake_reload (); } else retval = new_instance (f); return retval; } void octave_shlib::shlib_rep::add_fcn_name (const std::string& name) { fcn_names_iterator p = fcn_names.find (name); if (p == fcn_names.end ()) fcn_names[name] = 1; else ++(p->second); } bool octave_shlib::shlib_rep::remove_fcn_name (const std::string& fcn_name) { bool retval = false; fcn_names_iterator p = fcn_names.find (fcn_name); if (p != fcn_names.end () && --(p->second) == 0) { fcn_names.erase (fcn_name); retval = true; } return retval; } void octave_shlib::shlib_rep::do_close_hook (octave_shlib::close_hook cl_hook) { for (fcn_names_iterator p = fcn_names.begin (); p != fcn_names.end (); p++) cl_hook (p->first); fcn_names.clear (); } std::map<std::string, octave_shlib::shlib_rep *> octave_shlib::shlib_rep::instances; octave_shlib::shlib_rep octave_shlib::nil_rep; #if defined (HAVE_DLOPEN_API) class octave_dlopen_shlib : public octave_shlib::shlib_rep { public: octave_dlopen_shlib (const std::string& f); ~octave_dlopen_shlib (void); void *search (const std::string& name, octave_shlib::name_mangler mangler = 0); // FIXME: this is possibly redundant because failure to open a library will // normally throw an exception, avoiding the construction of an invalid // library. Leave it here for possible future use. bool is_open (void) const { return (library != 0); } private: // No copying! octave_dlopen_shlib (const octave_dlopen_shlib&); octave_dlopen_shlib& operator = (const octave_dlopen_shlib&); void *library; }; octave_dlopen_shlib::octave_dlopen_shlib (const std::string& f) : octave_shlib::shlib_rep (f), library (0) { int flags = 0; // Use RTLD_NOW to resolve all symbols before dlopen returns. // By using this option, dlopen will detect errors and Octave // won't exit if there are unresolved symbols in the file we are // loading, and we may even get a useful diagnostic. # if defined (RTLD_NOW) flags |= RTLD_NOW; # endif // Use RTLD_GLOBAL to export symbols from loaded objects so they are // available to other subsequently loaded libraries. # if defined (RTLD_GLOBAL) flags |= RTLD_GLOBAL; # endif library = dlopen (file.c_str (), flags); if (! library) { const char *msg = dlerror (); if (msg) (*current_liboctave_error_handler) ("%s: failed to load: %s", file.c_str (), msg); else (*current_liboctave_error_handler) ("%s: failed to load", file.c_str ()); } } octave_dlopen_shlib::~octave_dlopen_shlib (void) { if (library) dlclose (library); } void * octave_dlopen_shlib::search (const std::string& name, octave_shlib::name_mangler mangler) { void *function = 0; if (! is_open ()) (*current_liboctave_error_handler) ("shared library %s is not open", file.c_str ()); std::string sym_name = name; if (mangler) sym_name = mangler (name); function = dlsym (library, sym_name.c_str ()); return function; } #elif defined (HAVE_SHL_LOAD_API) class octave_shl_load_shlib : public octave_shlib::shlib_rep { public: octave_shl_load_shlib (const std::string& f); ~octave_shl_load_shlib (void); void *search (const std::string& name, octave_shlib::name_mangler mangler = 0); bool is_open (void) const { return (library != 0); } private: // No copying! octave_shl_load_shlib (const octave_shl_load_shlib&); octave_shl_load_shlib& operator = (const octave_shl_load_shlib&); shl_t library; }; octave_shl_load_shlib::octave_shl_load_shlib (const std::string& f) : octave_shlib::shlib_rep (f), library (0) { file = f; library = shl_load (file.c_str (), BIND_IMMEDIATE, 0L); if (! library) { using namespace std; // FIXME: Why have this line? (*current_liboctave_error_handler) ("%s", gnulib::strerror (errno)); } } octave_shl_load_shlib::~octave_shl_load_shlib (void) { if (library) shl_unload (library); } void * octave_shl_load_shlib::search (const std::string& name, octave_shlib::name_mangler mangler) { void *function = 0; if (! is_open ()) (*current_liboctave_error_handler) ("shared library %s is not open", file.c_str ()); std::string sym_name = name; if (mangler) sym_name = mangler (name); int status = shl_findsym (&library, sym_name.c_str (), TYPE_UNDEFINED, &function); return function; } #elif defined (HAVE_LOADLIBRARY_API) class octave_w32_shlib: public octave_shlib::shlib_rep { public: octave_w32_shlib (const std::string& f); ~octave_w32_shlib (void); void *search (const std::string& name, octave_shlib::name_mangler mangler = 0); bool is_open (void) const { return (handle != 0); } private: // No copying! octave_w32_shlib (const octave_w32_shlib&); octave_w32_shlib& operator = (const octave_w32_shlib&); HINSTANCE handle; }; octave_w32_shlib::octave_w32_shlib (const std::string& f) : octave_shlib::shlib_rep (f), handle (0) { handle = LoadLibrary (file.c_str ()); if (! handle) { DWORD lastError = GetLastError (); char *msg; switch (lastError) { case ERROR_MOD_NOT_FOUND: case ERROR_DLL_NOT_FOUND: msg = "could not find library or dependents"; break; case ERROR_INVALID_DLL: msg = "library or its dependents are damaged"; break; case ERROR_DLL_INIT_FAILED: msg = "library initialization routine failed"; break; default: msg = "library open failed"; } (*current_liboctave_error_handler) ("%s: %s", msg, file.c_str ()); } } octave_w32_shlib::~octave_w32_shlib (void) { if (handle) FreeLibrary (handle); } extern "C" { void * octave_w32_search (HINSTANCE handle, const char * name); } void * octave_w32_shlib::search (const std::string& name, octave_shlib::name_mangler mangler) { void *function = 0; if (! is_open ()) (*current_liboctave_error_handler) ("shared library %s is not open", file.c_str ()); std::string sym_name = name; if (mangler) sym_name = mangler (name); function = octave_w32_library_search (handle, sym_name.c_str ()); return function; } #elif defined (HAVE_DYLD_API) class octave_dyld_shlib : public octave_shlib::shlib_rep { public: octave_dyld_shlib (void); ~octave_dyld_shlib (void); void open (const std::string& f); void *search (const std::string& name, octave_shlib::name_mangler mangler = 0); void close (octave_shlib::close_hook cl_hook = 0); bool is_open (void) const {return (handle != 0); } private: // No copying! octave_dyld_shlib (const octave_dyld_shlib&); octave_dyld_shlib& operator = (const octave_dyld_shlib&); NSObjectFileImage img; NSModule handle; }; octave_dyld_shlib::octave_dyld_shlib (const std::string& f) : octave_shlib::shlib_rep (f), handle (0) { int returnCode = NSCreateObjectFileImageFromFile (file.c_str (), &img); if (NSObjectFileImageSuccess != returnCode) { (*current_liboctave_error_handler) ("got NSObjectFileImageReturnCode %d", returnCode); // FIXME: should use NSLinkEditError () to get // more info on what went wrong. } handle = NSLinkModule (img, file.c_str (), (NSLINKMODULE_OPTION_RETURN_ON_ERROR | NSLINKMODULE_OPTION_PRIVATE)); if (! handle) { NSLinkEditErrors ler; int lerno; const char *file2; const char *errstr = 0; NSLinkEditError (&ler, &lerno, &file2, &errstr); if (! errstr) errstr = "unspecified error"; (*current_liboctave_error_handler) ("%s: %s", file.c_str (), errstr); } } octave_dyld_shlib::~octave_dyld_shlib (void) { if (handle) NSUnLinkModule (handle, NSUNLINKMODULE_OPTION_RESET_LAZY_REFERENCES); NSDestroyObjectFileImage (img); } void * octave_dyld_shlib::search (const std::string& name, octave_shlib::name_mangler mangler) { void *function = 0; if (! is_open ()) (*current_liboctave_error_handler) ("bundle %s is not open", file.c_str ()); std::string sym_name = name; if (mangler) sym_name = mangler (name); NSSymbol symbol = NSLookupSymbolInModule (handle, sym_name.c_str ()); if (symbol) { function = NSAddressOfSymbol (symbol); } return function; } #endif octave_shlib::shlib_rep * octave_shlib::shlib_rep::new_instance (const std::string& f) { #if defined (HAVE_DLOPEN_API) return new octave_dlopen_shlib (f); #elif defined (HAVE_SHL_LOAD_API) return new octave_shl_load_shlib (f); #elif defined (HAVE_LOADLIBRARY_API) return new octave_w32_shlib (f); #elif defined (HAVE_DYLD_API) return new octave_dyld_shlib (f); #else (*current_liboctave_error_handler) ("support for dynamically loaded libraries was unavailable or disabled when liboctave was built"); #endif }