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Diffstat (limited to 'examples/h5_elink_unix2win.c')
-rw-r--r--examples/h5_elink_unix2win.c126
1 files changed, 65 insertions, 61 deletions
diff --git a/examples/h5_elink_unix2win.c b/examples/h5_elink_unix2win.c
index c29e7db..44986cb 100644
--- a/examples/h5_elink_unix2win.c
+++ b/examples/h5_elink_unix2win.c
@@ -27,7 +27,6 @@
#include <stdlib.h>
#include <string.h>
-
/* "Windows to Unix" traversal function for external links
*
* Translates a filename stored in Unix format to Windows format by replacing
@@ -37,45 +36,44 @@
* Note that this may not be necessary on your system; many Windows systems can
* understand Unix paths.
*/
-static hid_t elink_unix2win_trav(const char *link_name, hid_t cur_group,
- const void *udata, size_t udata_size, hid_t lapl_id, hid_t dxpl_id)
+static hid_t
+elink_unix2win_trav(const char *link_name, hid_t cur_group, const void *udata, size_t udata_size,
+ hid_t lapl_id, hid_t dxpl_id)
{
- hid_t fid;
- const char *file_name;
- const char *obj_name;
- char *new_fname = NULL; /* Buffer allocated to hold Unix file path */
- ssize_t prefix_len; /* External link prefix length */
- size_t fname_len;
- size_t start_pos; /* Initial position in new_fname buffer */
- size_t x; /* Counter variable */
- hid_t ret_value = -1;
+ hid_t fid;
+ const char *file_name;
+ const char *obj_name;
+ char * new_fname = NULL; /* Buffer allocated to hold Unix file path */
+ ssize_t prefix_len; /* External link prefix length */
+ size_t fname_len;
+ size_t start_pos; /* Initial position in new_fname buffer */
+ size_t x; /* Counter variable */
+ hid_t ret_value = -1;
printf("Converting Unix path to Windows path.\n");
- if(H5Lunpack_elink_val(udata, udata_size, NULL, &file_name, &obj_name) < 0)
+ if (H5Lunpack_elink_val(udata, udata_size, NULL, &file_name, &obj_name) < 0)
goto error;
fname_len = strlen(file_name);
/* See if the external link prefix property is set */
- if((prefix_len = H5Pget_elink_prefix(lapl_id, NULL, 0)) < 0)
+ if ((prefix_len = H5Pget_elink_prefix(lapl_id, NULL, 0)) < 0)
goto error;
/* If so, prepend it to the filename. We assume that the prefix
* is in the correct format for the current file system.
*/
- if(prefix_len > 0)
- {
+ if (prefix_len > 0) {
/* Allocate a buffer to hold the filename plus prefix */
new_fname = malloc(prefix_len + fname_len + 1);
/* Copy the prefix into the buffer */
- if(H5Pget_elink_prefix(lapl_id, new_fname, (size_t)(prefix_len + 1)) < 0)
+ if (H5Pget_elink_prefix(lapl_id, new_fname, (size_t)(prefix_len + 1)) < 0)
goto error;
start_pos = prefix_len;
}
- else
- {
+ else {
/* Allocate a buffer to hold just the filename */
new_fname = malloc(fname_len + 1);
start_pos = 0;
@@ -84,9 +82,8 @@ static hid_t elink_unix2win_trav(const char *link_name, hid_t cur_group,
/* We should now copy file_name into new_fname starting at position pos.
* We'll convert '/' characters into '\' characters as we go.
*/
- for(x=0; file_name[x] != '\0'; x++)
- {
- if(file_name[x] == '/')
+ for (x = 0; file_name[x] != '\0'; x++) {
+ if (file_name[x] == '/')
new_fname[x + start_pos] = '\\';
else
new_fname[x + start_pos] = file_name[x];
@@ -94,38 +91,37 @@ static hid_t elink_unix2win_trav(const char *link_name, hid_t cur_group,
new_fname[x + start_pos] = '\0';
/* Now open the file and object within it */
- if((fid = H5Fopen(new_fname, H5F_ACC_RDWR, H5P_DEFAULT)) < 0)
+ if ((fid = H5Fopen(new_fname, H5F_ACC_RDWR, H5P_DEFAULT)) < 0)
goto error;
ret_value = H5Oopen(fid, obj_name, lapl_id); /* If this fails, our return value will be negative. */
- if(H5Fclose(fid) < 0)
+ if (H5Fclose(fid) < 0)
goto error;
/* Free file name if it's been allocated */
- if(new_fname)
+ if (new_fname)
free(new_fname);
return ret_value;
error:
/* Free file name if it's been allocated */
- if(new_fname)
+ if (new_fname)
free(new_fname);
return -1;
}
const H5L_class_t elink_unix2win_class[1] = {{
- H5L_LINK_CLASS_T_VERS, /* H5L_class_t version */
- H5L_TYPE_EXTERNAL, /* Link type id number */
- "unix2win external link", /* Link class name for debugging */
- NULL, /* Creation callback */
- NULL, /* Move callback */
- NULL, /* Copy callback */
- elink_unix2win_trav, /* The actual traversal function */
- NULL, /* Deletion callback */
- NULL /* Query callback */
+ H5L_LINK_CLASS_T_VERS, /* H5L_class_t version */
+ H5L_TYPE_EXTERNAL, /* Link type id number */
+ "unix2win external link", /* Link class name for debugging */
+ NULL, /* Creation callback */
+ NULL, /* Move callback */
+ NULL, /* Copy callback */
+ elink_unix2win_trav, /* The actual traversal function */
+ NULL, /* Deletion callback */
+ NULL /* Query callback */
}};
-
/* The example function.
* Creates a file named "unix2win.h5" with an external link pointing to
* the file "u2w/u2w_target.h5".
@@ -136,55 +132,65 @@ const H5L_class_t elink_unix2win_class[1] = {{
static int
unix2win_example(void)
{
- hid_t fid = (-1); /* File ID */
- hid_t gid = (-1); /* Group ID */
+ hid_t fid = (-1); /* File ID */
+ hid_t gid = (-1); /* Group ID */
/* Create the target file. */
#ifdef H5_HAVE_WIN32_API
- if((fid=H5Fcreate("u2w\\u2w_target.h5", H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT))<0) goto error;
+ if ((fid = H5Fcreate("u2w\\u2w_target.h5", H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT)) < 0)
+ goto error;
#else
- if((fid=H5Fcreate("u2w/u2w_target.h5", H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT))<0) goto error;
+ if ((fid = H5Fcreate("u2w/u2w_target.h5", H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT)) < 0)
+ goto error;
#endif
- if(H5Fclose(fid) < 0) goto error;
+ if (H5Fclose(fid) < 0)
+ goto error;
/* Create the source file with an external link in Windows format */
- if((fid=H5Fcreate("unix2win.h5", H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT))<0) goto error;
+ if ((fid = H5Fcreate("unix2win.h5", H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT)) < 0)
+ goto error;
/* Create the external link */
- if(H5Lcreate_external("u2w/../u2w/u2w_target.h5", "/", fid, "ext_link", H5P_DEFAULT, H5P_DEFAULT) < 0) goto error;
+ if (H5Lcreate_external("u2w/../u2w/u2w_target.h5", "/", fid, "ext_link", H5P_DEFAULT, H5P_DEFAULT) < 0)
+ goto error;
- /* If we are not on Windows, assume we are on a Unix-y filesystem and
- * follow the external link normally.
- * If we are on Windows, register the unix2win traversal function so
- * that external links can be traversed.
- */
+ /* If we are not on Windows, assume we are on a Unix-y filesystem and
+ * follow the external link normally.
+ * If we are on Windows, register the unix2win traversal function so
+ * that external links can be traversed.
+ */
#ifdef H5_HAVE_WIN32_API
/* Register the elink_unix2win class defined above to replace default
* external links
*/
- if(H5Lregister(elink_unix2win_class) < 0) goto error;
+ if (H5Lregister(elink_unix2win_class) < 0)
+ goto error;
#endif
/* Now follow the link */
- if((gid = H5Gopen2(fid, "ext_link", H5P_DEFAULT)) < 0) goto error;
+ if ((gid = H5Gopen2(fid, "ext_link", H5P_DEFAULT)) < 0)
+ goto error;
printf("Successfully followed external link.\n");
/* Close the group and the file */
- if(H5Gclose(gid) <0) goto error;
- if(H5Fclose(fid) <0) goto error;
+ if (H5Gclose(gid) < 0)
+ goto error;
+ if (H5Fclose(fid) < 0)
+ goto error;
return 0;
- error:
+error:
printf("Error!\n");
- H5E_BEGIN_TRY {
- H5Gclose (gid);
- H5Fclose (fid);
- } H5E_END_TRY;
+ H5E_BEGIN_TRY
+ {
+ H5Gclose(gid);
+ H5Fclose(fid);
+ }
+ H5E_END_TRY;
return -1;
}
-
/* Main function
*
@@ -193,12 +199,10 @@ unix2win_example(void)
int
main(void)
{
- int ret;
+ int ret;
printf("Testing unix2win external links.\n");
ret = unix2win_example();
return ret;
}
-
-