Initial commit interface for python wrap

.gitignore

@@ -224,5 +224,6 @@ temp/
 nrtestsuite/
 tests/data/
 
-#Cmake generated export headers
+#Cmake stuff
+buildprod*/
 *_export.h

CMakeLists.txt

@@ -69,8 +69,8 @@ ENDIF (MSVC)
 
 
 # configure file groups
-file(GLOB EPANET_SOURCES src/*.c)
+file(GLOB EPANET_SOURCES src/*.c src/util/*.c)
-file(GLOB EPANET_LIB_ALL src/*.c src/*.h)
+file(GLOB EPANET_LIB_ALL src/* src/util/*)
 source_group("Library" FILES ${EPANET_LIB_ALL})
 
 

include/epanet_py.h

@@ -0,0 +1,33 @@
+
+
+
+
+#ifndef EPANET_PY_H
+#define EPANET_PY_H
+
+
+#include "epanet2_export.h"
+#include "epanet2_enums.h"
+
+
+#if defined(__cplusplus)
+extern "C" {
+#endif
+
+// Opaque pointer to project
+typedef void *Handle;
+
+
+int DLLEXPORT create_project(Handle *ph);
+
+int DLLEXPORT delete_project(Handle *ph);
+
+int DLLEXPORT run_project(Handle ph, const char *input_path,
+    const char *report_path, const char *output_path);
+
+
+#if defined(__cplusplus)
+}
+#endif
+
+#endif //EPANET_PY_H

src/epanet_py.c

@@ -0,0 +1,52 @@
+
+
+#include <stdlib.h>
+
+#include "epanet_py.h"
+#include "util/errormanager.h"
+#include "epanet2_2.h"
+#include "types.h"
+
+
+typedef struct {
+    Project *project;
+    error_handle_t *error;
+}handle_t;
+
+
+int DLLEXPORT create_project(Handle *ph)
+{
+    handle_t *handle = (handle_t *)calloc(1, sizeof(handle_t));
+
+    if (handle != NULL)
+    {
+        EN_createproject(&handle->project);
+        handle->error = error_new_manager(&EN_geterror);
+        *ph = handle;
+        return 0;
+    }
+    return -1;
+}
+
+int DLLEXPORT delete_project(Handle *ph)
+{
+    handle_t *handle = (handle_t *)*ph;
+
+    if (handle == NULL)
+        return -1;
+    else
+    {
+        EN_deleteproject(&handle->project);
+        error_dst_manager(handle->error);
+    }
+    return 0;
+}
+
+int DLLEXPORT run_project(Handle ph, const char *input_path,
+    const char *report_path, const char *output_path)
+{
+    handle_t *pr = (handle_t *)ph;
+
+    return error_set(pr->error,
+        EN_runproject(pr->project, input_path, report_path, output_path, NULL));
+}

src/util/errormanager.c

@@ -0,0 +1,74 @@
+//-----------------------------------------------------------------------------
+//
+//   errormanager.c
+//
+//   Purpose: Provides a simple interface for managing runtime error messages.
+//
+//   Date:       08/25/2017
+//
+//   Author:     Michael E. Tryby
+//               US EPA - ORD/NRMRL
+//-----------------------------------------------------------------------------
+#include <stdlib.h>
+#include <string.h>
+#include "errormanager.h"
+
+error_handle_t* error_new_manager(void (*p_error_message)(int, char*, int))
+//
+// Purpose: Constructs a new error handle.
+//
+{
+	error_handle_t* error_handle;
+	error_handle = (error_handle_t*)calloc(1, sizeof(error_handle_t));
+
+	error_handle->p_msg_lookup = p_error_message;
+
+	return error_handle;
+}
+
+void error_dst_manager(error_handle_t* error_handle)
+//
+// Purpose: Destroys the error handle.
+//
+{
+	free(error_handle);
+}
+
+int error_set(error_handle_t* error_handle, int errorcode)
+//
+// Purpose: Sets an error code in the handle.
+//
+{
+	// If the error code is 0 no action is taken and 0 is returned.
+	// This is a feature not a bug.
+	if (errorcode)
+		error_handle->error_status = errorcode;
+
+	return errorcode;
+}
+
+char* error_check(error_handle_t* error_handle)
+//
+// Purpose: Returns the error message or NULL.
+//
+// Note: Caller must free memory allocated by check_error
+//
+{
+	char* temp = NULL;
+
+	if (error_handle->error_status != 0) {
+		temp = (char*) calloc(ERR_MAXMSG, sizeof(char));
+
+		if (temp)
+			error_handle->p_msg_lookup(error_handle->error_status, temp, ERR_MAXMSG);
+	}
+	return temp;
+}
+
+void error_clear(error_handle_t* error_handle)
+//
+// Purpose: Clears the error from the handle.
+//
+{
+	error_handle->error_status = 0;
+}

src/util/errormanager.h

@@ -0,0 +1,27 @@
+/*
+ *  errormanager.h
+ *
+ *  Created on: Aug 25, 2017
+ *
+ *      Author: Michael E. Tryby
+ *              US EPA - ORD/NRMRL
+ */
+
+#ifndef ERRORMANAGER_H_
+#define ERRORMANAGER_H_
+
+#define ERR_MAXMSG 256
+
+typedef struct error_s {
+	int error_status;
+	void (*p_msg_lookup)(int, char*, int);
+} error_handle_t;
+
+error_handle_t* error_new_manager(void (*p_error_message)(int, char*, int));
+void error_dst_manager(error_handle_t* error_handle);
+
+int error_set(error_handle_t* error_handle, int errorcode);
+char* error_check(error_handle_t* error_handle);
+void error_clear(error_handle_t* error_handle);
+
+#endif /* ERRORMANAGER_H_ */