#ifndef CONTENT_PUBLIC_BROWSER_FILE_DESCRIPTOR_INFO_H_
#define CONTENT_PUBLIC_BROWSER_FILE_DESCRIPTOR_INFO_H_
-#include "base/file_descriptor_posix.h"
+#include "base/files/file.h"
+#include "base/process/launch.h"
namespace content {
-// This struct is used when passing files that should be mapped in a process
-// that is been created and allows to associate that file with a specific ID.
-// It also provides a way to know if the actual file descriptor should be
-// closed with the FileDescriptor.auto_close field.
-
-struct FileDescriptorInfo {
- FileDescriptorInfo(int id, const base::FileDescriptor& file_descriptor)
- : id(id),
- fd(file_descriptor) {
- }
-
- int id;
- base::FileDescriptor fd;
+// FileDescriptorInfo is a collection of file descriptors which is
+// needed to launch a process. You should tell FileDescriptorInfo
+// which FD should be closed and which shouldn't so that it can take care
+// of the lifetime of FDs.
+//
+// See base/process/launcher.h for more details about launching a
+// process.
+class FileDescriptorInfo {
+ public:
+ virtual ~FileDescriptorInfo() {}
+
+ // Add an FD associated with an ID, without delegating the ownerhip
+ // of ID.
+ virtual void Share(int id, base::PlatformFile fd) = 0;
+
+ // Add an FD associated with an ID, passing the FD ownership to
+ // FileDescriptorInfo.
+ virtual void Transfer(int id, base::ScopedFD fd) = 0;
+
+ // A vecotr backed map of registered ID-FD pairs.
+ virtual const base::FileHandleMappingVector& GetMapping() const = 0;
+
+ // A GetMapping() variant what adjusts the ID value by |delta|.
+ // Some environments need this trick.
+ virtual base::FileHandleMappingVector GetMappingWithIDAdjustment(
+ int delta) const = 0;
+
+ // API for iterating registered ID-FD pairs.
+ virtual base::PlatformFile GetFDAt(size_t i) const = 0;
+ virtual int GetIDAt(size_t i) const = 0;
+ virtual size_t GetMappingSize() const = 0;
};
}