From 161267f020da228ca9e2ded13a712f989fc7e22e Mon Sep 17 00:00:00 2001
From: Giovanna Lazzari Miotto <giovanna.lazzari.miotto@cern.ch>
Date: Fri, 30 Aug 2024 10:44:13 +0200
Subject: [PATCH] improve creat
---
test/testing_scripts/creat_test.cpp | 57 ++++++++++++++++++++++-------
1 file changed, 43 insertions(+), 14 deletions(-)
diff --git a/test/testing_scripts/creat_test.cpp b/test/testing_scripts/creat_test.cpp
index d884083d..c597efde 100644
--- a/test/testing_scripts/creat_test.cpp
+++ b/test/testing_scripts/creat_test.cpp
@@ -1,8 +1,9 @@
#include <errno.h>
#include <fcntl.h>
-#include <linux/famfs_ioctl.h>
+//#include <linux/famfs_ioctl.h>
#include <stdio.h>
#include <stdlib.h>
+#include <sys/mman.h>
#include <unistd.h>
#include <iostream>
@@ -17,9 +18,7 @@ void generate_random_data(char *buffer, size_t length) {
buffer[length] = '\0';
}
-
-int main(int argc, char* argv[]) {
-
+int main(int argc, char *argv[]) {
if (argc < 4) {
std::cout << "Wrong number of arguments" << std::endl;
return -1;
@@ -39,32 +38,62 @@ int main(int argc, char* argv[]) {
}
generate_random_data(data, length - 1);
+ std::cout << "=== Data generated ===" << std::endl;
+
// open()
- std::string open_filepath = filepath + "_open";
+ std::string open_filepath = filepath + "_write";
std::cout << "Attempting to call open() on FAMFS for filename=" << open_filepath << std::endl;
int fd = open(open_filepath.c_str(), O_CREAT | O_RDWR);
if (fd < 0) {
std::cout << "Failed open() with fd=" << std::to_string(fd)
<< " and errno=" << std::to_string(errno) << std::endl;
- }
-
- int write_rc = write(fd, (void *)data, sizeof(data));
- if (write_rc != sizeof(data)) {
- std::cout << "write() call returned wrong value rc=" << std::to_string(write_rc) << std::endl;
+ } else {
+ int write_rc = write(fd, (void *)data, sizeof(data));
+ if (write_rc != sizeof(data)) {
+ std::cout << "write() call returned wrong value rc=" << std::to_string(write_rc) << std::endl;
+ } else {
+ std::cout << "sys open / write ran without failure" << std::endl;
+ }
}
// fopen()
- std::string fopen_filepath = filepath + "_fopen";
+ std::string fopen_filepath = filepath + "_fwrite";
std::cout << "Attempting to call fopen() on FAMFS for filename=" << fopen_filepath << std::endl;
FILE *stream_file = fopen(fopen_filepath.c_str(), "rwa+");
if (stream_file == NULL) {
std::cout << "Failed fopen() with errno=" << std::to_string(errno) << std::endl;
+ } else {
+ int fwrite_rc = fwrite((void *)data, 1, sizeof(data), stream_file);
+ if (fwrite_rc != sizeof(data)) {
+ std::cout << "fwrite() call returned wrong value rc=" << std::to_string(fwrite_rc)
+ << std::endl;
+ } else {
+ std::cout << "fopen / fwrite ran without failure" << std::endl;
+ }
}
- int fwrite_rc = fwrite((void *)data, 1, sizeof(data), stream_file);
- if (fwrite_rc != sizeof(data)) {
- std::cout << "write() call returned wrong value rc=" << std::to_string(write_rc) << std::endl;
+ std::string mmap_filepath = filepath + "_mmap";
+ std::cout << "[MMAP] Attempting to call open() on FAMFS for filename=" << mmap_filepath
+ << std::endl;
+ int fd_mmap = open(mmap_filepath.c_str(), O_CREAT | O_RDWR);
+ if (fd_mmap < 0) {
+ std::cout << "Failed open() with fd=" << std::to_string(fd_mmap)
+ << " and errno=" << std::to_string(errno) << std::endl;
+ } else {
+ auto buf = mmap(NULL, length, PROT_WRITE, MAP_SHARED, fd_mmap, 0);
+
+ if (buf == MAP_FAILED) {
+ std::cout << "[MMAP] Error! Memory mapping unsuccessful. errno=" << std::to_string(errno) << std::endl;
+ } else {
+ memcpy(buf, data, length);
+ if (munmap(buf, length) < 0) {
+ std::cout << "[MMAP FAILED] errno=" << std::to_string(errno) << std::endl;
+ } else {
+ std::cout << "[MMAP SUCCESS]" << std::endl;
+ }
+ }
}
+
return 0;
}
\ No newline at end of file
--
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