From: Bastian Dehn <hhaalo@arcor.de>
Date: Mon, 9 Dec 2024 17:37:38 +0000 (+0100)
Subject: read xml file into memory
X-Git-Tag: 1.3.2^2~1^2~1
X-Git-Url: https://gitweb.hhaalo.de/?a=commitdiff_plain;h=99dac553d7ca9e15aa832abc45d7cd36947e5d7f;p=feierabend.git

read xml file into memory
---

diff --git a/src/xml.c b/src/xml.c
index 27117e8..c9f71f3 100644
--- a/src/xml.c
+++ b/src/xml.c
@@ -4,6 +4,7 @@
 #include <libxml/parser.h>
 #include <libxml/xpath.h>
 #include <libxml/xmlreader.h>
+#include <stdio.h>
 #include <glob.h>
 #include "xml.h"
 #include "feierabend.h"
@@ -14,6 +15,19 @@
 
 #define MAX_STRING_LENGTH 36
 
+void init_memFile(memFile* mem) {
+	mem->data = malloc(sizeof(char*));
+	mem->size = malloc(sizeof(size_t));
+}
+
+void free_memFile(memFile* mem) {
+	free(*mem->data);
+	free(mem->data);
+	free(mem->size);
+	mem->data = NULL;
+	mem->size = NULL;
+}
+
 void init_feierabend(feierabend* fabend)
 {
 	fabend->now = malloc(sizeof(time_t));
@@ -37,6 +51,22 @@ void free_feierabend(feierabend* fabend)
 	fabend->timestr = NULL;
 }
 
+void readFileIntoMemory(const char* file_path, memFile* mem)
+{
+	char* buf = malloc(sizeof(char));
+	FILE* memstream = open_memstream(mem->data, mem->size);
+	FILE* file = fopen(file_path, "r");
+
+	while(fread(buf, sizeof(char), 1, file) != 0) {
+		fwrite(buf, sizeof(char), 1, memstream);
+	}
+	fclose(file);
+	fclose(memstream);
+
+	free(buf);
+	buf = NULL;
+}
+
 void initTimeAcount()
 {
 	xmlChar* xmlElemName = NULL;
@@ -364,6 +394,10 @@ void addEntry(const char* date,
 	int end_min,
 	const char* file_path)
 {
+	memFile* fileContent = malloc(sizeof(memFile));
+	init_memFile(fileContent);
+	readFileIntoMemory(file_path, fileContent);
+
 	char* saldostr = malloc(sizeof(char) * MAX_STRING_LENGTH);
 	memset(saldostr, 0, MAX_STRING_LENGTH);
 	readLastSaldo(file_path, saldostr);
@@ -376,7 +410,7 @@ void addEntry(const char* date,
 	free(xmlElemContent);
 	xmlElemContent = NULL;
 
-	xmlTextReaderPtr xmlreader = xmlReaderForFile(file_path, "UTF-8", 0);
+	xmlTextReaderPtr xmlreader = xmlReaderForMemory(*fileContent->data, *fileContent->size, NULL, "UTF-8", 0);
 	xmlNodePtr xmlnode = NULL;
 
 	xmlTextWriterStartDocument(xmlwriter, "1.0", "UTF-8", NULL);
@@ -410,6 +444,9 @@ void addEntry(const char* date,
 	xmlCleanupCharEncodingHandlers();
 	xmlDictCleanup();
 
+	free_memFile(fileContent);
+	free(fileContent);
+	fileContent = NULL;
 	free(xmlElemContent);
 	xmlElemContent = NULL;
 	free(saldo);
diff --git a/src/xml.h b/src/xml.h
index bf00052..1198925 100644
--- a/src/xml.h
+++ b/src/xml.h
@@ -1,6 +1,11 @@
 #ifndef XML_H
 #define XML_H
 
+typedef struct {
+	char** data;
+	size_t* size;
+} memFile;
+
 void initTimeAcount();
 void createEntry(int begin_hour,
 	int begin_min,