add plibsys

1 files changed, 381 insertions, 0 deletions

diff --git a/3rdparty/plibsys/src/pdir-os2.c b/3rdparty/plibsys/src/pdir-os2.c
new file mode 100644
index 0000000..8869329
--- /dev/null
+++ b/3rdparty/plibsys/src/pdir-os2.c
@@ -0,0 +1,381 @@
+/*
+ * The MIT License
+ *
+ * Copyright (C) 2017 Alexander Saprykin <saprykin.spb@gmail.com>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the
+ * 'Software'), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sublicense, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+ * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+ * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include "pdir.h"
+#include "perror.h"
+#include "pmem.h"
+#include "pstring.h"
+#include "perror-private.h"
+
+#define INCL_DOSFILEMGR
+#define INCL_DOSERRORS
+#include <os2.h>
+
+#include <stdlib.h>
+#include <string.h>
+
+struct PDir_ {
+	FILEFINDBUF3	find_data;
+	HDIR		search_handle;
+	pboolean	cached;
+	pchar		path[CCHMAXPATH];
+	pchar		*orig_path;
+};
+
+P_LIB_API PDir *
+p_dir_new (const pchar	*path,
+	   PError	**error)
+{
+	PDir	*ret;
+	pchar	*pathp;
+	pchar	*adj_path;
+	pint	path_len;
+	APIRET	ulrc;
+	ULONG	find_count;
+
+	if (P_UNLIKELY (path == NULL)) {
+		p_error_set_error_p (error,
+				     (pint) P_ERROR_IO_INVALID_ARGUMENT,
+				     0,
+				     "Invalid input argument");
+		return NULL;
+	}
+
+	if (P_UNLIKELY ((ret = p_malloc0 (sizeof (PDir))) == NULL)) {
+		p_error_set_error_p (error,
+				     (pint) P_ERROR_IO_NO_RESOURCES,
+				     0,
+				     "Failed to allocate memory for directory structure");
+		return NULL;
+	}
+
+	adj_path = NULL;
+	path_len = strlen (path);
+
+	if (P_UNLIKELY (path[path_len - 1] == '\\' || path[path_len - 1] == '/') && path_len > 1) {
+		while ((path[path_len - 1] == '\\' || path[path_len - 1] == '/') && path_len > 1)
+			--path_len;
+
+		if (P_UNLIKELY ((adj_path = p_malloc0 (path_len + 1)) == NULL)) {
+			p_free (ret);
+			p_error_set_error_p (error,
+					     (pint) P_ERROR_IO_NO_RESOURCES,
+					     0,
+					     "Failed to allocate memory for directory path");
+			return NULL;
+		}
+
+		memcpy (adj_path, path, path_len);
+		
+		adj_path[path_len] = '\0';
+		ret->orig_path = p_strdup (path);
+		path = (const pchar *) adj_path;
+	}
+
+	ret->search_handle = HDIR_CREATE;
+
+	ulrc = DosQueryPathInfo ((PSZ) path, FIL_QUERYFULLNAME, ret->path, sizeof (ret->path) - 2);
+
+	if (P_UNLIKELY (ulrc != NO_ERROR)) {
+		p_error_set_error_p (error,
+				     (pint) p_error_get_io_from_system ((pint) ulrc),
+				     (pint) ulrc,
+				     "Failed to call DosQueryPathInfo() to get directory path");
+
+		if (P_UNLIKELY (adj_path != NULL)) {
+			p_free (adj_path);
+			p_free (ret->orig_path);
+		}
+
+		p_free (ret);
+		return NULL;
+	}
+
+	/* Append the search pattern "\\*\0" to the directory name */
+	pathp = strchr (ret->path, '\0');
+
+	if (ret->path < pathp  &&  *(pathp - 1) != '\\'  &&  *(pathp - 1) != ':')
+		*pathp++ = '\\';
+
+	*pathp++ = '*';
+	*pathp = '\0';
+
+	find_count = 1;
+
+	/* Open directory stream and retrieve the first entry */
+	ulrc = DosFindFirst (ret->path,
+			     &ret->search_handle,
+			     FILE_NORMAL | FILE_DIRECTORY,
+			     &ret->find_data,
+			     sizeof (ret->find_data),
+			     &find_count,
+			     FIL_STANDARD);
+
+	if (P_UNLIKELY (ulrc != NO_ERROR && ulrc != ERROR_NO_MORE_FILES)) {
+		p_error_set_error_p (error,
+				     (pint) p_error_get_io_from_system ((pint) ulrc),
+				     (pint) ulrc,
+				     "Failed to call DosFindFirst() to open directory stream");
+
+		if (P_UNLIKELY (adj_path != NULL)) {
+			p_free (adj_path);
+			p_free (ret->orig_path);
+		}
+
+		p_free (ret);
+		return NULL;
+	}
+
+	ret->cached = TRUE;
+
+	if (P_UNLIKELY (adj_path != NULL))
+		p_free (adj_path);
+	else
+		ret->orig_path = p_strdup (path);
+
+	return ret;
+}
+
+P_LIB_API pboolean
+p_dir_create (const pchar	*path,
+	      pint		mode,
+	      PError		**error)
+{
+	APIRET ulrc;
+
+	P_UNUSED (mode);
+
+	if (P_UNLIKELY (path == NULL)) {
+		p_error_set_error_p (error,
+				     (pint) P_ERROR_IO_INVALID_ARGUMENT,
+				     0,
+				     "Invalid input argument");
+		return FALSE;
+	}
+
+	if (p_dir_is_exists (path))
+		return TRUE;
+
+	if (P_UNLIKELY ((ulrc = DosCreateDir ((PSZ) path, NULL)) != NO_ERROR)) {
+		p_error_set_error_p (error,
+				     (pint) p_error_get_io_from_system ((pint) ulrc),
+				     (pint) ulrc,
+				     "Failed to call DosCreateDir() to create directory");
+		return FALSE;
+	} else
+		return TRUE;
+}
+
+P_LIB_API pboolean
+p_dir_remove (const pchar	*path,
+	      PError		**error)
+{
+	APIRET ulrc;
+
+	if (P_UNLIKELY (path == NULL)) {
+		p_error_set_error_p (error,
+				     (pint) P_ERROR_IO_INVALID_ARGUMENT,
+				     0,
+				     "Invalid input argument");
+		return FALSE;
+	}
+
+	if (!p_dir_is_exists (path)) {
+		p_error_set_error_p (error,
+				     (pint) P_ERROR_IO_NOT_EXISTS,
+				     0,
+				     "Specified directory doesn't exist");
+		return FALSE;
+	}
+
+	if (P_UNLIKELY ((ulrc = DosDeleteDir ((PSZ) path)) != NO_ERROR)) {
+		p_error_set_error_p (error,
+				     (pint) p_error_get_io_from_system ((pint) ulrc),
+				     (pint) ulrc,
+				     "Failed to call DosDeleteDir() to remove directory");
+		return FALSE;
+	} else
+		return TRUE;
+}
+
+P_LIB_API pboolean
+p_dir_is_exists (const pchar *path)
+{
+	FILESTATUS3	status;
+
+	if (P_UNLIKELY (path == NULL))
+		return FALSE;
+
+	if (DosQueryPathInfo ((PSZ) path, FIL_STANDARD, (PVOID) &status, sizeof (status)) != NO_ERROR)
+		return FALSE;
+
+	return (status.attrFile & FILE_DIRECTORY) != 0;
+}
+
+P_LIB_API pchar *
+p_dir_get_path (const PDir *dir)
+{
+	if (P_UNLIKELY (dir == NULL))
+		return NULL;
+
+	return p_strdup (dir->orig_path);
+}
+
+P_LIB_API PDirEntry *
+p_dir_get_next_entry (PDir	*dir,
+		      PError	**error)
+{
+	PDirEntry	*ret;
+	APIRET		ulrc;
+	ULONG		find_count;
+
+	if (P_UNLIKELY (dir == NULL)) {
+		p_error_set_error_p (error,
+				     (pint) P_ERROR_IO_INVALID_ARGUMENT,
+				     0,
+				     "Invalid input argument");
+		return NULL;
+	}
+
+	if (dir->cached == TRUE) {
+		dir->cached = FALSE;
+
+		/* Opened directory is empty */
+		if (P_UNLIKELY (dir->search_handle == HDIR_CREATE)) {
+			p_error_set_error_p (error,
+					     (pint) P_ERROR_IO_NO_MORE,
+					     (pint) ERROR_NO_MORE_FILES,
+					     "Directory is empty to get the next entry");
+			return NULL;
+		}
+	} else {
+		if (P_UNLIKELY (dir->search_handle == HDIR_CREATE)) {
+			p_error_set_error_p (error,
+					     (pint) P_ERROR_IO_INVALID_ARGUMENT,
+					     0,
+					     "Not a valid (or closed) directory stream");
+			return NULL;
+		}
+
+		find_count = 1;
+
+		ulrc = DosFindNext (dir->search_handle,
+				    (PVOID) &dir->find_data,
+				    sizeof (dir->find_data),
+				    &find_count);
+
+		if (P_UNLIKELY (ulrc != NO_ERROR)) {
+			p_error_set_error_p (error,
+					     (pint) p_error_get_io_from_system ((pint) ulrc),
+					     (pint) ulrc,
+					     "Failed to call DosFindNext() to read directory stream");
+			DosFindClose (dir->search_handle);
+			dir->search_handle = HDIR_CREATE;
+			return NULL;
+		}
+	}
+
+	if (P_UNLIKELY ((ret = p_malloc0 (sizeof (PDirEntry))) == NULL)) {
+		p_error_set_error_p (error,
+				     (pint) P_ERROR_IO_NO_RESOURCES,
+				     0,
+				     "Failed to allocate memory for directory entry");
+		return NULL;
+	}
+
+	ret->name = p_strdup (dir->find_data.achName);
+
+	if ((dir->find_data.attrFile & FILE_DIRECTORY) != 0)
+		ret->type = P_DIR_ENTRY_TYPE_DIR;
+	else
+		ret->type = P_DIR_ENTRY_TYPE_FILE;
+
+	return ret;
+}
+
+P_LIB_API pboolean
+p_dir_rewind (PDir	*dir,
+	      PError	**error)
+{
+	APIRET	ulrc;
+	ULONG	find_count;
+
+	if (P_UNLIKELY (dir == NULL)) {
+		p_error_set_error_p (error,
+				     (pint) P_ERROR_IO_INVALID_ARGUMENT,
+				     0,
+				     "Invalid input argument");
+		return FALSE;
+	}
+
+	if (dir->search_handle != HDIR_CREATE) {
+		if (P_UNLIKELY ((ulrc = DosFindClose (dir->search_handle)) != NO_ERROR)) {
+			p_error_set_error_p (error,
+					     (pint) p_error_get_io_from_system ((pint) ulrc),
+					     (pint) ulrc,
+					     "Failed to call DosFindClose() to close directory stream");
+			return FALSE;
+		}
+
+		dir->search_handle = HDIR_CREATE;
+	}
+
+	find_count = 1;
+
+	ulrc = DosFindFirst (dir->path,
+			     &dir->search_handle,
+			     FILE_NORMAL | FILE_DIRECTORY,
+			     &dir->find_data,
+			     sizeof (dir->find_data),
+			     &find_count,
+			     FIL_STANDARD);
+
+	if (P_UNLIKELY (ulrc != NO_ERROR && ulrc != ERROR_NO_MORE_FILES)) {
+		p_error_set_error_p (error,
+				     (pint) p_error_get_io_from_system ((pint) ulrc),
+				     (pint) ulrc,
+				     "Failed to call DosFindFirst() to open directory stream");
+		dir->cached = FALSE;
+		return FALSE;
+	} else {
+		dir->cached = TRUE;
+		return TRUE;
+	}
+}
+
+P_LIB_API void
+p_dir_free (PDir *dir)
+{
+	if (dir == NULL)
+		return;
+
+	if (P_LIKELY (dir->search_handle != HDIR_CREATE)) {
+		if (P_UNLIKELY (DosFindClose (dir->search_handle) != NO_ERROR))
+			P_ERROR ("PDir::p_dir_free: DosFindClose() failed");
+	}
+
+	p_free (dir->orig_path);
+	p_free (dir);
+}