1 files changed, 152 insertions, 0 deletions
diff --git a/generic/Exceptions.cpp b/generic/Exceptions.cpp
new file mode 100644
index 0000000..b541235
--- /dev/null
+++ b/generic/Exceptions.cpp
@@ -0,0 +1,152 @@
+#include <malloc.h>
+#include <unistd.h>
+#include <string.h>
+#include <errno.h>
+#include <stddef.h>
+#include "String.h"
+#include "Exceptions.h"
+#include "General.h"
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#else
+#define _(x) x
+#endif
+
+char GeneralException::t[BUFSIZ];
+
+GeneralException::GeneralException(String emsg) : msg(emsg.strdup()) {
+#ifdef DEBUG
+    cerr << _("Generating a General Exception error: '") << msg << "'.\n";
+#endif
+}
+GeneralException::GeneralException() : msg(0) {
+#ifdef DEBUG
+    cerr << _("Generating a General Exception error: '") << msg << "'.\n";
+#endif
+}
+GeneralException::GeneralException(const GeneralException & e) : msg(strdup(e.msg)) {
+#ifdef DEBUG
+    cerr << _("Generating a General Exception error: '") << msg << "'.\n";
+#endif
+}
+
+GeneralException::~GeneralException() {
+    free(msg);
+}
+
+TaskNotFound::TaskNotFound() : GeneralException("Task not found") { }
+
+char * GeneralException::GetMsg() {
+    return msg;
+}
+
+MemoryException::MemoryException(ssize_t s) {
+    sprintf(t, _("Failed allocating %u bytes."), s);
+    msg = strdup(t);
+}
+
+IOException::IOException(String fn, op_t op, ssize_t s) {
+    sprintf(t, _("An error has occured while %s %u bytes on %s: %s"), op == IO_WRITE ? _("writing") : _("reading"),
+	    s, fn.to_charp(), strerror(errno));
+    msg = strdup(t);
+}
+
+IOGeneral::IOGeneral(String fn) : GeneralException(fn) { }
+
+IOGeneral::IOGeneral() { }
+
+IOAgain::IOAgain() : IOGeneral(_("No more bytes for reading or writing.")) {
+#ifdef DEBUG
+    cerr << "Generating an IOAgain exception: '" << GetMsg() << "'.\n";
+#endif
+}
+
+TaskSwitch::TaskSwitch() : GeneralException(_("Switching task in a non-tasked environnement")) {
+#ifdef DEBUG
+    cerr << "Generating a TaskSwitch exception: '" << GetMsg() << "'.\n";
+#endif
+}
+
+char * xstrdup(const char * s) {
+    char * r;
+    
+    r = (char *) xmalloc(strlen(s) + 1);
+    strcpy(r, s);
+    return r;
+}
+
+void * xmalloc(size_t s) throw (GeneralException) {
+    char * r;
+    
+    if (!s) {
+	return 0;
+    }
+    
+    if (!(r = (char *) ::malloc(s + sizeof(size_t)))) {
+	throw MemoryException(s + sizeof(size_t));
+    }
+    
+    memset(r, 0, s + sizeof(size_t));
+    
+    *((size_t *)r) = s;
+
+    return (void *)(r + sizeof(size_t));
+}
+
+void * xrealloc(void * ptr, size_t s) {
+    char * r;
+    size_t os;
+    
+    if (!ptr) {
+	return xmalloc(s);
+    }
+    
+    os = *(((size_t *) ptr) - 1);
+    
+    r = (char *) xmalloc(s);
+
+    if (s) {
+	memcpy(r, ptr, MIN(s, os));
+    }
+    
+    xfree(ptr);    
+    return r;
+}
+
+#ifdef OVER_FREE
+#undef free
+#endif
+
+void xfree(void *& p) {
+    if (p) {
+	::free(((char *)p) - sizeof(size_t));
+	p = 0;
+    }
+}
+
+void xfree(char *& p) {
+    if (p) {
+	::free(p - sizeof(size_t));
+	p = 0;
+    }
+}
+
+int xpipe(int * p, int flag) throw (GeneralException) {
+    if (pipe(p)) {
+	throw GeneralException(String(_("Error creating pipe: ")) + strerror(errno));
+    }
+			            
+    return p[flag];
+}
+
+pid_t xfork() throw (GeneralException) {
+    pid_t p;
+    
+    p = fork();
+    
+    if (p == -1) {
+	throw GeneralException(_("Was not able to fork().\n"));
+    }
+    
+    return p;
+}