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libsysprof-analyze: add API to open input stream

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This commit is contained in:
Christian Hergert
2023-05-14 18:19:30 -07:00
parent 3350ad61eb
commit 6429768373
2 changed files with 45 additions and 3 deletions
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40
src/libsysprof-analyze/sysprof-document-file.c
View File

@ -22,6 +22,7 @@
#include "sysprof-document-file-chunk.h"
#include "sysprof-document-file-private.h"
#include "sysprof-document-frame-private.h"
struct _SysprofDocumentFile
{
@ -155,3 +156,42 @@ sysprof_document_file_dup_bytes (SysprofDocumentFile *self)
return g_bytes_new_take (g_array_free (ar, FALSE), len);
}
/**
* sysprof_document_file_read:
* @self: a #SysprofDocumentFile
*
* Creates a new input stream containing the contents of the file
* within the document.
*
* Returns: (transfer full): a #GInputstream
*/
GInputStream *
sysprof_document_file_read (SysprofDocumentFile *self)
{
GInputStream *input;
g_return_val_if_fail (SYSPROF_IS_DOCUMENT_FILE (self), NULL);
input = g_memory_input_stream_new ();
for (guint i = 0; i < self->file_chunks->len; i++)
{
g_autoptr(GBytes) bytes = NULL;
SysprofDocumentFileChunk *file_chunk;
const guint8 *data;
guint len;
file_chunk = g_ptr_array_index (self->file_chunks, i);
data = sysprof_document_file_chunk_get_data (file_chunk, &len);
bytes = g_bytes_new_with_free_func (data,
len,
(GDestroyNotify)g_mapped_file_unref,
g_mapped_file_ref (SYSPROF_DOCUMENT_FRAME (self)->mapped_file));
g_memory_input_stream_add_bytes (G_MEMORY_INPUT_STREAM (input), bytes);
}
return g_steal_pointer (&input);
}

8
src/libsysprof-analyze/sysprof-document-file.h
View File

@ -20,7 +20,7 @@
#pragma once
#include <glib-object.h>
#include <gio/gio.h>
#include <sysprof-capture.h>
@ -32,8 +32,10 @@ SYSPROF_AVAILABLE_IN_ALL
G_DECLARE_FINAL_TYPE (SysprofDocumentFile, sysprof_document_file, SYSPROF, DOCUMENT_FILE, GObject)
SYSPROF_AVAILABLE_IN_ALL
const char *sysprof_document_file_get_path (SysprofDocumentFile *self);
const char *sysprof_document_file_get_path (SysprofDocumentFile *self);
SYSPROF_AVAILABLE_IN_ALL
GBytes *sysprof_document_file_dup_bytes (SysprofDocumentFile *self);
GBytes *sysprof_document_file_dup_bytes (SysprofDocumentFile *self);
SYSPROF_AVAILABLE_IN_ALL
GInputStream *sysprof_document_file_read (SysprofDocumentFile *self);
G_END_DECLS