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Implementing filemanager

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Implementing and testing filemanager and upgrading epanet_output library to use it.
This commit is contained in:
Michael Tryby
2019-04-01 15:03:02 -04:00
parent 69da9a4997
commit 23ac179ec1
7 changed files with 231 additions and 150 deletions
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3
src/outfile/CMakeLists.txt
View File

@@ -21,7 +21,8 @@ set(CMAKE_INCLUDE_CURRENT_DIR ON)
# configure file groups
set(EPANET_OUT_SOURCES src/epanet_output.c
../util/errormanager.c)
../util/errormanager.c
../util/filemanager.c)
# the binary output file API

160
src/outfile/src/epanet_output.c
View File

@@ -40,18 +40,13 @@
#include <string.h>
#include "util/errormanager.h"
#include "util/filemanager.h"
#include "epanet_output.h"
#include "messages.h"
// NOTE: These depend on machine data model and may change when porting
// F_OFF Must be a 8 byte / 64 bit integer for large file support
#ifdef _WIN32 // Windows (32-bit and 64-bit)
#define F_OFF __int64
#else // Other platforms
#define F_OFF off_t
#endif
#define INT4 int // Must be a 4 byte / 32 bit integer type
#define REAL4 float // Must be a 4 byte / 32 bit real type
#define WORDSIZE 4 // Memory alignment 4 byte word size for both int and real
@@ -71,13 +66,12 @@
// Typedefs for opaque pointer
typedef struct data_s {
char name[MAXFNAME+1]; // file path/name
FILE* file; // FILE structure pointer
INT4 nodeCount, tankCount, linkCount, pumpCount, valveCount, nPeriods;
F_OFF outputStartPos; // starting file position of output data
F_OFF bytesPerPeriod; // bytes saved per simulation time period
error_handle_t *error_handle;
file_handle_t *file_handle;
} data_t;
//-----------------------------------------------------------------------------
@@ -88,10 +82,6 @@ int validateFile(ENR_Handle);
float getNodeValue(ENR_Handle, int, int, int);
float getLinkValue(ENR_Handle, int, int, int);
int _fopen(FILE **f, const char *name, const char *mode);
int _fseek(FILE* stream, F_OFF offset, int whence);
F_OFF _ftell(FILE* stream);
float *newFloatArray(int n);
int *newIntArray(int n);
char *newCharArray(int n);
@@ -114,6 +104,7 @@ int EXPORT_OUT_API ENR_init(ENR_Handle* dp_handle)
if (p_data != NULL){
p_data->error_handle = create_error_manager(&errorLookup);
p_data->file_handle = create_file_manager();
*dp_handle = p_data;
}
else
@@ -143,13 +134,16 @@ int EXPORT_OUT_API ENR_close(ENR_Handle* p_handle)
p_data = (data_t*)(*p_handle);
if (p_data == NULL || p_data->file == NULL)
if (p_data == NULL || p_data->file_handle == NULL)
errorcode = -1;
else
{
close_file(p_data->file_handle);
delete_error_manager(p_data->error_handle);
fclose(p_data->file);
delete_file_manager(p_data->file_handle);
free(p_data);
*p_handle = NULL;
@@ -178,23 +172,22 @@ int EXPORT_OUT_API ENR_open(ENR_Handle p_handle, const char* path)
if (p_data == NULL) return -1;
else
{
strncpy(p_data->name, path, MAXFNAME);
// Attempt to open binary output file for reading only
if ((_fopen(&(p_data->file), path, "rb")) != 0) errorcode = 434;
if ((open_file(p_data->file_handle, path, "rb")) != 0)
errorcode = 434;
// Perform checks to insure the file is valid
else if ((err = validateFile(p_data)) != 0) errorcode = err;
// If a warning is encountered read file header
if (errorcode < 400 ) {
// read network size
fseek(p_data->file, 2*WORDSIZE, SEEK_SET);
fread(&(p_data->nodeCount), WORDSIZE, 1, p_data->file);
fread(&(p_data->tankCount), WORDSIZE, 1, p_data->file);
fread(&(p_data->linkCount), WORDSIZE, 1, p_data->file);
fread(&(p_data->pumpCount), WORDSIZE, 1, p_data->file);
fread(&(p_data->valveCount), WORDSIZE, 1, p_data->file);
seek_file(p_data->file_handle, 2*WORDSIZE, SEEK_SET);
read_file(&(p_data->nodeCount), WORDSIZE, 1, p_data->file_handle);
read_file(&(p_data->tankCount), WORDSIZE, 1, p_data->file_handle);
read_file(&(p_data->linkCount), WORDSIZE, 1, p_data->file_handle);
read_file(&(p_data->pumpCount), WORDSIZE, 1, p_data->file_handle);
read_file(&(p_data->valveCount), WORDSIZE, 1, p_data->file_handle);
// Compute positions and offsets for retrieving data
// fixed portion of header + title section + filenames + chem names
@@ -240,8 +233,8 @@ int EXPORT_OUT_API ENR_getVersion(ENR_Handle p_handle, int* version)
if (p_data == NULL) return -1;
else
{
fseek(p_data->file, 1*WORDSIZE, SEEK_SET);
if (fread(version, WORDSIZE, 1, p_data->file) != 1)
seek_file(p_data->file_handle, 1*WORDSIZE, SEEK_SET);
if (read_file(version, WORDSIZE, 1, p_data->file_handle) != 1)
errorcode = 436;
}
@@ -319,26 +312,26 @@ int EXPORT_OUT_API ENR_getUnits(ENR_Handle p_handle, ENR_Units code, int* unitFl
switch (code)
{
case ENR_flowUnits:
_fseek(p_data->file, 9*WORDSIZE, SEEK_SET);
fread(unitFlag, WORDSIZE, 1, p_data->file);
seek_file(p_data->file_handle, 9*WORDSIZE, SEEK_SET);
read_file(unitFlag, WORDSIZE, 1, p_data->file_handle);
break;
case ENR_pressUnits:
_fseek(p_data->file, 10*WORDSIZE, SEEK_SET);
fread(unitFlag, WORDSIZE, 1, p_data->file);
seek_file(p_data->file_handle, 10*WORDSIZE, SEEK_SET);
read_file(unitFlag, WORDSIZE, 1, p_data->file_handle);
break;
case ENR_qualUnits:
offset = 7*WORDSIZE;
_fseek(p_data->file, offset, SEEK_SET);
fread(unitFlag, WORDSIZE, 1, p_data->file);
seek_file(p_data->file_handle, offset, SEEK_SET);
read_file(unitFlag, WORDSIZE, 1, p_data->file_handle);
if (*unitFlag == 0) *unitFlag = ENR_NONE;
else if (*unitFlag == 1) {
offset = 15*WORDSIZE + 3*MAXMSG_P1 + 2*(MAXFNAME+1) + MAXID_P1;
_fseek(p_data->file, offset, SEEK_SET);
fread(temp, MAXID_P1, 1, p_data->file);
seek_file(p_data->file_handle, offset, SEEK_SET);
read_file(temp, MAXID_P1, 1, p_data->file_handle);
if (!strcmp(temp, "mg/L")) *unitFlag = ENR_MGL;
else *unitFlag = ENR_UGL;
@@ -379,18 +372,18 @@ int EXPORT_OUT_API ENR_getTimes(ENR_Handle p_handle, ENR_Time code, int* time)
switch (code)
{
case ENR_reportStart:
fseek(p_data->file, 12*WORDSIZE, SEEK_SET);
fread(time, WORDSIZE, 1, p_data->file);
seek_file(p_data->file_handle, 12*WORDSIZE, SEEK_SET);
read_file(time, WORDSIZE, 1, p_data->file_handle);
break;
case ENR_reportStep:
fseek(p_data->file, 13*WORDSIZE, SEEK_SET);
fread(time, WORDSIZE, 1, p_data->file);
seek_file(p_data->file_handle, 13*WORDSIZE, SEEK_SET);
read_file(time, WORDSIZE, 1, p_data->file_handle);
break;
case ENR_simDuration:
fseek(p_data->file, 14*WORDSIZE, SEEK_SET);
fread(time, WORDSIZE, 1, p_data->file);
seek_file(p_data->file_handle, 14*WORDSIZE, SEEK_SET);
read_file(time, WORDSIZE, 1, p_data->file_handle);
break;
case ENR_numPeriods:
@@ -405,7 +398,6 @@ int EXPORT_OUT_API ENR_getTimes(ENR_Handle p_handle, ENR_Time code, int* time)
}
int EXPORT_OUT_API ENR_getChemData(ENR_Handle p_handle, char** name, int* length)
{
return 0;
}
@@ -459,8 +451,8 @@ int EXPORT_OUT_API ENR_getElementName(ENR_Handle p_handle, ENR_ElementType type,
if (!errorcode)
{
_fseek(p_data->file, offset, SEEK_SET);
fread(temp, 1, MAXID_P1, p_data->file);
seek_file(p_data->file_handle, offset, SEEK_SET);
read_file(temp, 1, MAXID_P1, p_data->file_handle);
*name = temp;
*length = MAXID_P1;
@@ -505,9 +497,9 @@ int EXPORT_OUT_API ENR_getEnergyUsage(ENR_Handle p_handle, int pumpIndex,
offset += (pumpIndex - 1)*(WORDSIZE + 6*WORDSIZE);
// Power summary is 1 int and 6 floats for each pump
_fseek(p_data->file, offset, SEEK_SET);
fread(linkIndex, WORDSIZE, 1, p_data->file);
fread(temp, WORDSIZE, 6, p_data->file);
seek_file(p_data->file_handle, offset, SEEK_SET);
read_file(linkIndex, WORDSIZE, 1, p_data->file_handle);
read_file(temp, WORDSIZE, 6, p_data->file_handle);
*outValues = temp;
*length = NENERGYRESULTS;
@@ -541,8 +533,8 @@ int EXPORT_OUT_API ENR_getNetReacts(ENR_Handle p_handle, float** outValues, int*
// Reaction summary is 4 floats located right before epilogue.
// This offset is relative to the end of the file.
offset = - 3*WORDSIZE - 4*WORDSIZE;
_fseek(p_data->file, offset, SEEK_END);
fread(temp, WORDSIZE, 4, p_data->file);
seek_file(p_data->file_handle, offset, SEEK_END);
read_file(temp, WORDSIZE, 4, p_data->file_handle);
*outValues = temp;
*length = NREACTRESULTS;
@@ -670,8 +662,8 @@ int EXPORT_OUT_API ENR_getNodeAttribute(ENR_Handle p_handle, int periodIndex,
// add offset for node and attribute
offset += ((attr - 1)*p_data->nodeCount)*WORDSIZE;
_fseek(p_data->file, offset, SEEK_SET);
fread(temp, WORDSIZE, p_data->nodeCount, p_data->file);
seek_file(p_data->file_handle, offset, SEEK_SET);
read_file(temp, WORDSIZE, p_data->nodeCount, p_data->file_handle);
*outValueArray = temp;
*length = p_data->nodeCount;
@@ -720,8 +712,8 @@ int EXPORT_OUT_API ENR_getLinkAttribute(ENR_Handle p_handle, int periodIndex,
// add offset for link and attribute
offset += ((attr - 1)*p_data->linkCount)*WORDSIZE;
_fseek(p_data->file, offset, SEEK_SET);
fread(temp, WORDSIZE, p_data->linkCount, p_data->file);
seek_file(p_data->file_handle, offset, SEEK_SET);
read_file(temp, WORDSIZE, p_data->linkCount, p_data->file_handle);
*outValueArray = temp;
*length = p_data->linkCount;
@@ -852,16 +844,16 @@ int validateFile(ENR_Handle p_handle)
p_data = (data_t*)p_handle;
// Read magic number from beginning of file
fseek(p_data->file, 0L, SEEK_SET);
fread(&magic1, WORDSIZE, 1, p_data->file);
seek_file(p_data->file_handle, 0L, SEEK_SET);
read_file(&magic1, WORDSIZE, 1, p_data->file_handle);
// Fast forward to end and read file epilogue
fseek(p_data->file, -3*WORDSIZE, SEEK_END);
fread(&(p_data->nPeriods), WORDSIZE, 1, p_data->file);
fread(&hydcode, WORDSIZE, 1, p_data->file);
fread(&magic2, WORDSIZE, 1, p_data->file);
seek_file(p_data->file_handle, -3*WORDSIZE, SEEK_END);
read_file(&(p_data->nPeriods), WORDSIZE, 1, p_data->file_handle);
read_file(&hydcode, WORDSIZE, 1, p_data->file_handle);
read_file(&magic2, WORDSIZE, 1, p_data->file_handle);
filepos = _ftell(p_data->file);
filepos = tell_file(p_data->file_handle);
// Is the file an EPANET binary file?
if (magic1 != magic2) errorcode = 435;
@@ -891,8 +883,8 @@ float getNodeValue(ENR_Handle p_handle, int periodIndex, int nodeIndex,
// add byte position for attribute and node
offset += ((attr - 1)*p_data->nodeCount + (nodeIndex - 1))*WORDSIZE;
_fseek(p_data->file, offset, SEEK_SET);
fread(&y, WORDSIZE, 1, p_data->file);
seek_file(p_data->file_handle, offset, SEEK_SET);
read_file(&y, WORDSIZE, 1, p_data->file_handle);
return y;
}
@@ -915,56 +907,12 @@ float getLinkValue(ENR_Handle p_handle, int periodIndex, int linkIndex,
// add byte position for attribute and link
offset += ((attr - 1)*p_data->linkCount + (linkIndex - 1))*WORDSIZE;
_fseek(p_data->file, offset, SEEK_SET);
fread(&y, WORDSIZE, 1, p_data->file);
seek_file(p_data->file_handle, offset, SEEK_SET);
read_file(&y, WORDSIZE, 1, p_data->file_handle);
return y;
}
int _fopen(FILE **f, const char *name, const char *mode) {
//
// Purpose: Substitute for fopen_s on platforms where it doesn't exist
// Note: fopen_s is part of C++11 standard
//
int ret = 0;
#ifdef _WIN32
ret = (int)fopen_s(f, name, mode);
#else
*f = fopen(name, mode);
if (!*f)
ret = -1;
#endif
return ret;
}
int _fseek(FILE* stream, F_OFF offset, int whence)
//
// Purpose: Selects platform fseek() for large file support
//
{
#ifdef _WIN32 // Windows (32-bit and 64-bit)
#define FSEEK64 _fseeki64
#else // Other platforms
#define FSEEK64 fseeko
#endif
return FSEEK64(stream, offset, whence);
}
F_OFF _ftell(FILE* stream)
//
// Purpose: Selects platform ftell() for large file support
//
{
#ifdef _WIN32 // Windows (32-bit and 64-bit)
#define FTELL64 _ftelli64
#else // Other platforms
#define FTELL64 ftello
#endif
return FTELL64(stream);
}
float* newFloatArray(int n)
//
// Warning: Caller must free memory allocated by this function.

100
src/util/filemanager.c
View File

@@ -1,49 +1,91 @@
#include <stdio.h>
// MSVC ONLY
#ifdef _DEBUG
#define _CRTDBG_MAP_ALLOC
#include <stdlib.h>
#include <crtdbg.h>
#else
#include <stdlib.h>
#endif
#include <string.h>
#include "filemanager.h"
typedef struct file_s {
char filename[FILE_MAXNAME + 1];
FILE *file;
char mode[FILE_MAXMODE + 1];
} file_handle_t;
// local (private) functions
int _fopen(FILE **f, const char *name, const char *mode);
int _get_temp_filename(char *tempname);
file_handle_t *create_file_manager(const char *filename, const char *file_mode) {
file_handle_t *create_file_manager() {
file_handle_t *file_handle;
file_handle = (file_handle_t*)calloc(1, sizeof(file_handle_t));
return file_handle;
}
void delete_file_manager(file_handle_t *file_handle) {
free(file_handle);
}
int open_file(file_handle_t *file_handle, const char *filename, const char *file_mode) {
int error = 0;
if (filename == NULL)
_get_temp_filename(file_handle->filename);
else
strncpy(file_handle->filename, filename, FILE_MAXNAME);
file_handle->file = NULL;
strncpy(file_handle->mode, file_mode, FILE_MAXMODE);
return file_handle;
}
int delete_file_manager(file_handle_t *file_handle) {
free(file_handle);
}
int open_file(file_handle_t *file_handle) {
int error = 0;
if ((file_handle->file = fopen(file_handle->filename, file_handle->mode)) == NULL)
if (file_mode == NULL)
error = -1;
else {
strncpy(file_handle->mode, file_mode, FILE_MAXMODE);
error = _fopen(&(file_handle->file), file_handle->filename, file_handle->mode);
}
return error;
}
FILE *get_file(file_handle_t *file_handle) {
return file_handle->file;
int seek_file(file_handle_t *file_handle, F_OFF offset, int whence)
{
#ifdef _WIN32 // Windows (32-bit and 64-bit)
#define FSEEK64 _fseeki64
#else // Other platforms
#define FSEEK64 fseeko
#endif
return FSEEK64(file_handle->file, offset, whence);
}
F_OFF tell_file(file_handle_t *file_handle)
{
#ifdef _WIN32 // Windows (32-bit and 64-bit)
#define FTELL64 _ftelli64
#else // Other platforms
#define FTELL64 ftello
#endif
return FTELL64(file_handle->file);
}
size_t read_file(void *ptr, size_t size, size_t nmemb, file_handle_t *file_handle)
{
return fread(ptr, size, nmemb, file_handle->file);
}
int close_file(file_handle_t *file_handle) {
int error = 0;
@@ -59,14 +101,30 @@ int remove_file(file_handle_t *file_handle) {
}
int _fopen(FILE **f, const char *name, const char *mode) {
//
// Purpose: Substitute for fopen_s on platforms where it doesn't exist
// Note: fopen_s is part of C++11 standard
//
int ret = 0;
#ifdef _WIN32
ret = (int)fopen_s(f, name, mode);
#else
*f = fopen(name, mode);
if (!*f)
ret = -1;
#endif
return ret;
}
int _get_temp_filename(char *tempname) {
int error = 0
int error = 0;
#ifdef _WIN32
char *name = NULL;
// --- use Windows _tempnam function to get a pointer to an
// unused file name that begins with "en"
if ((name = _tempnam(NULL, "en") == NULL) {
if ((name = _tempnam(name, "en")) == NULL) {
error = -1;
return error;
}

27
src/util/filemanager.h
View File

@@ -8,6 +8,14 @@
#include <stdio.h>
// F_OFF Must be a 8 byte / 64 bit integer for large file support
#ifdef _WIN32 // Windows (32-bit and 64-bit)
#define F_OFF __int64
#else // Other platforms
#define F_OFF off_t
#endif
#define FILE_MAXNAME 259
#define FILE_MAXMODE 3
@@ -17,21 +25,22 @@ extern "C" {
#endif
typedef struct file_s {
char filename[FILE_MAXNAME + 1],
FILE *file;
char mode[FILE_MAXMODE + 1];
} file_handle_t;
typedef struct file_s file_handle_t;
file_handle_t *create_file_manager(const char *filename, const char *file_mode);
file_handle_t *create_file_manager();
int delete_file_manager(file_handle_t *file_handle);
void delete_file_manager(file_handle_t *file_handle);
int open_file(file_handle_t *file_handle);
int open_file(file_handle_t *file_handle, const char *filename, const char *file_mode);
int seek_file(file_handle_t *file_handle, F_OFF offset, int whence);
F_OFF tell_file(file_handle_t *file_handle);
size_t read_file(void *ptr, size_t size, size_t nmemb, file_handle_t *file_handle);
FILE *get_file(file_handle_t *file_handle);
int close_file(file_handle_t *file_handle);

6
tests/util/CMakeLists.txt
View File

@@ -15,3 +15,9 @@ set (test_source
add_executable(test_errormanager ${test_source})
target_include_directories(test_errormanager PUBLIC ../../src/)
target_link_libraries(test_errormanager ${Boost_LIBRARIES})
add_executable(test_filemanager ./test_filemanager.cpp ../../src/util/filemanager.c)
target_include_directories(test_filemanager PUBLIC ../../src/)
target_link_libraries(test_filemanager ${Boost_LIBRARIES})

2
tests/util/test_errormanager.cpp
View File

@@ -1,7 +1,7 @@
#define BOOST_TEST_MODULE errormanager
//#define BOOST_TEST_DYN_LINK
#include <boost/test/unit_test.hpp>
#include "util/errormanager.h"

59
tests/util/test_filemanager.cpp
View File

@@ -5,3 +5,62 @@
#include <boost/test/unit_test.hpp>
#include "util/filemanager.h"
#define DATA_PATH_OUTPUT "./example1.out"
BOOST_AUTO_TEST_SUITE(test_filemanager)
BOOST_AUTO_TEST_CASE (test_create_destroy)
{
file_handle_t *file_handle = NULL;
file_handle = create_file_manager();
BOOST_CHECK(file_handle != NULL);
delete_file_manager(file_handle);
}
BOOST_AUTO_TEST_CASE(test_open_close)
{
int error = 0;
file_handle_t *file_handle = NULL;
file_handle = create_file_manager();
BOOST_CHECK(file_handle != NULL);
error = open_file(file_handle, DATA_PATH_OUTPUT, "rb");
BOOST_REQUIRE(error == 0);
error = close_file(file_handle);
BOOST_REQUIRE(error == 0);
delete_file_manager(file_handle);
}
struct Fixture{
Fixture() {
error = 0;
file_handle = NULL;
file_handle = create_file_manager();
open_file(file_handle, DATA_PATH_OUTPUT, "rb");
}
~Fixture() {
close_file(file_handle);
delete_file_manager(file_handle);
}
int error;
file_handle_t *file_handle;
};
BOOST_FIXTURE_TEST_CASE(test_get_file, Fixture)
{
FILE *file;
//file = get_file(file_handle);
//BOOST_CHECK(file != NULL);
}
BOOST_AUTO_TEST_SUITE_END()