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00033 #include "mmstools/mmsshlhandler.h"
00034 #include "mmstools/mmsfile.h"
00035 #ifdef __HAVE_DL__
00036 #include <dlfcn.h>
00037 #endif
00038
00039 MMSShlHandler::~MMSShlHandler() {
00040 #ifndef __HAVE_DL__
00041 throw MMSShlError(0, "Compile with use_dl (libdl support)");
00042 #else
00043
00044 if(this->isloaded) {
00045 dlclose(this->handle);
00046 }
00047 #endif
00048 }
00049
00050 void MMSShlHandler::close() {
00051 #ifndef __HAVE_DL__
00052 throw MMSShlError(0, "Compile with use_dl (libdl support)");
00053 #else
00054
00055 if(this->isloaded) {
00056 dlclose(this->handle);
00057 this->isloaded = false;
00058 } else {
00059 throw MMSShlError(0,"shared library " + this->name + " is not loaded");
00060 }
00061 #endif
00062 }
00063
00064 void MMSShlHandler::open() {
00065 #ifndef __HAVE_DL__
00066 throw MMSShlError(0, "Compile with use_dl (libdl support)");
00067 #else
00068
00069 if(this->isloaded) {
00070 throw MMSShlError(0,"shared library " + this->name + " is alread loaded");
00071 }
00072 else {
00073 this->handle = dlopen(this->name.c_str(),RTLD_NOW);
00074
00075 if(this->handle == NULL)
00076 throw MMSShlError(0,"shared library " + this->name + " cannot be loaded: " + dlerror());
00077
00078 this->isloaded = true;
00079 }
00080 #endif
00081 }
00082
00083 void MMSShlHandler::setName(string name) {
00084 #ifndef __HAVE_DL__
00085 throw MMSShlError(0, "Compile with use_dl (libdl support)");
00086 #else
00087
00088 this->name = name;
00089 #endif
00090 }
00091
00092 string MMSShlHandler::getName() {
00093 #ifndef __HAVE_DL__
00094 throw MMSShlError(0, "Compile with use_dl (libdl support)");
00095 #else
00096
00097 return this->name;
00098 #endif
00099 }
00100
00101 void *MMSShlHandler::getFunction(string name) {
00102 #ifndef __HAVE_DL__
00103 throw MMSShlError(0, "Compile with use_dl (libdl support)");
00104 #else
00105
00106 void *ret = NULL;
00107
00108 if(this->isloaded) {
00109 ret = dlsym(this->handle,name.c_str());
00110 if(ret == NULL)
00111 throw MMSShlError(0,"symbol " + name + " cannot be retrieved: " + dlerror());
00112 } else {
00113 throw MMSShlError(0,"shared library " + this->name + " is not loaded");
00114 }
00115
00116 return ret;
00117 #endif
00118 }
00119
00120 bool MMSShlHandler::isLoaded() {
00121 #ifndef __HAVE_DL__
00122 throw MMSShlError(0, "Compile with use_dl (libdl support)");
00123 #else
00124 return this->isloaded;
00125 #endif
00126
00127 }