summaryrefslogtreecommitdiffstats
path: root/src/H5FDstream.c
diff options
context:
space:
mode:
authorAlbert Cheng <acheng@hdfgroup.org>2007-11-20 17:22:15 (GMT)
committerAlbert Cheng <acheng@hdfgroup.org>2007-11-20 17:22:15 (GMT)
commita0c93eb2ed0e9c4e68480a90f76164ef6ef92549 (patch)
treecd5d99f582285f3735c21bc5d0a4e09f528fabd7 /src/H5FDstream.c
parentd2a01022be9abc559d4b7d6ea6f33904ed4d6862 (diff)
downloadhdf5-a0c93eb2ed0e9c4e68480a90f76164ef6ef92549.zip
hdf5-a0c93eb2ed0e9c4e68480a90f76164ef6ef92549.tar.gz
hdf5-a0c93eb2ed0e9c4e68480a90f76164ef6ef92549.tar.bz2
[svn-r14275] Removed all stream-vfd source code, both library and test.
Updated MANIFEST of the removal too. Tested: Kagiso and smirom.
Diffstat (limited to 'src/H5FDstream.c')
-rw-r--r--src/H5FDstream.c1170
1 files changed, 0 insertions, 1170 deletions
diff --git a/src/H5FDstream.c b/src/H5FDstream.c
deleted file mode 100644
index 82828ac..0000000
--- a/src/H5FDstream.c
+++ /dev/null
@@ -1,1170 +0,0 @@
-/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
- * Copyright by The HDF Group. *
- * Copyright by the Board of Trustees of the University of Illinois. *
- * All rights reserved. *
- * *
- * This file is part of HDF5. The full HDF5 copyright notice, including *
- * terms governing use, modification, and redistribution, is contained in *
- * the files COPYING and Copyright.html. COPYING can be found at the root *
- * of the source code distribution tree; Copyright.html can be found at the *
- * root level of an installed copy of the electronic HDF5 document set and *
- * is linked from the top-level documents page. It can also be found at *
- * http://hdfgroup.org/HDF5/doc/Copyright.html. If you do not have *
- * access to either file, you may request a copy from help@hdfgroup.org. *
- * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
-
-/*
- * Copyright © 2000 The author.
- * The author prefers this code not be used for military purposes.
- *
- *
- * Author: Thomas Radke <tradke@aei-potsdam.mpg.de>
- * Tuesday, September 12, 2000
- *
- * Purpose: This code provides the Stream Virtual File Driver.
- * It is very much based on the core VFD which keeps an
- * entire HDF5 data file to be processed in main memory.
- * In addition to that, the memory image of the file is
- * read from/written to a socket during an open/flush operation.
- *
- * Modifications:
- * Thomas Radke, Thursday, October 26, 2000
- * Added support for Windows.
- * Catch SIGPIPE on an open socket.
- *
- */
-
-/* Interface initialization */
-#define H5_INTERFACE_INIT_FUNC H5FD_stream_init_interface
-
-
-#include "H5private.h" /* Generic Functions */
-#include "H5Eprivate.h" /* Error handling */
-#include "H5FDprivate.h" /* File drivers */
-#include "H5FDstream.h" /* Stream file driver */
-#include "H5Iprivate.h" /* IDs */
-#include "H5MMprivate.h" /* Memory management */
-#include "H5Pprivate.h" /* Property lists */
-
-/* Only build this driver if it was configured with --with-Stream-VFD */
-#ifdef H5_HAVE_STREAM
-
-#ifdef H5FD_STREAM_HAVE_UNIX_SOCKETS
-#ifdef H5_HAVE_SYS_TYPES_H
-#include <sys/types.h> /* socket stuff */
-#endif
-#ifdef H5_HAVE_SYS_SOCKET_H
-#include <sys/socket.h> /* socket stuff */
-#endif
-#include <netdb.h> /* gethostbyname */
-#include <netinet/in.h> /* socket stuff */
-#ifdef H5_HAVE_NETINET_TCP_H
-#include <netinet/tcp.h> /* socket stuff */
-#endif
-#ifdef H5_HAVE_SYS_FILIO_H
-#include <sys/filio.h> /* socket stuff */
-#endif
-#endif
-
-/*
- * WinXP x64 does not define EWOULDBLOCK, but instead uses
- * their own Windows-specific macro, so define it here.
- */
- #ifdef _WIN32
- #ifndef EWOULDBLOCK
- #define EWOULDBLOCK WSAEWOULDBLOCK
- #endif /* EWOULDBLOCK */
- #endif /* _WIN32 */
-
-#ifndef H5_HAVE_SOCKLEN_T
-typedef int socklen_t;
-#endif
-
-/* Some useful macros */
-#ifdef MIN
-#undef MIN
-#endif
-#ifdef MAX
-#undef MAX
-#endif
-#define MIN(x,y) ((x) < (y) ? (x) : (y))
-#define MAX(x,y) ((x) > (y) ? (x) : (y))
-
-/* Uncomment this to switch on debugging output */
-/* #define DEBUG 1 */
-
-/* Define some socket stuff which is different for UNIX and Windows */
-#ifdef H5FD_STREAM_HAVE_UNIX_SOCKETS
-#define H5FD_STREAM_CLOSE_SOCKET(a) close(a)
-#define H5FD_STREAM_IOCTL_SOCKET(a, b, c) ioctl(a, b, c)
-#define H5FD_STREAM_ERROR_CHECK(rc) ((rc) < 0)
-#else
-#define H5FD_STREAM_CLOSE_SOCKET(a) closesocket (a)
-#define H5FD_STREAM_IOCTL_SOCKET(a, b, c) ioctlsocket (a, b, (u_long *) (c))
-#define H5FD_STREAM_ERROR_CHECK(rc) ((rc) == (SOCKET) (SOCKET_ERROR))
-#endif
-
-
-/* The driver identification number, initialized at runtime */
-static hid_t H5FD_STREAM_g = 0;
-
-/*
- * The description of a file belonging to this driver. The `eoa' and `eof'
- * determine the amount of hdf5 address space in use and the high-water mark
- * of the file (the current size of the underlying memory).
- */
-typedef struct H5FD_stream_t
-{
- H5FD_t pub; /* public stuff, must be first */
- H5FD_stream_fapl_t fapl; /* file access property list */
- unsigned char *mem; /* the underlying memory */
- haddr_t eoa; /* end of allocated region */
- haddr_t eof; /* current allocated size */
- H5FD_STREAM_SOCKET_TYPE socket; /* socket to write / read from */
- hbool_t dirty; /* flag indicating unflushed data */
- hbool_t internal_socket; /* flag indicating an internal socket */
-} H5FD_stream_t;
-
-/* Allocate memory in multiples of this size (in bytes) by default */
-#define H5FD_STREAM_INCREMENT 8192
-
-/* default backlog argument for listen call */
-#define H5FD_STREAM_BACKLOG 1
-
-/* number of successive ports to hunt for until bind(2) succeeds
- (default 0 means no port hunting - only try the one given in the filename) */
-#define H5FD_STREAM_MAXHUNT 0
-
-/* default file access property list */
-static const H5FD_stream_fapl_t default_fapl =
-{
- H5FD_STREAM_INCREMENT, /* address space allocation blocksize */
- H5FD_STREAM_INVALID_SOCKET, /* no external socket descriptor */
- TRUE, /* enable I/O on socket */
- H5FD_STREAM_BACKLOG, /* default backlog for listen(2) */
- NULL, /* do not broadcast received files */
- NULL, /* argument to READ broadcast routine */
- H5FD_STREAM_MAXHUNT, /* default number of ports to hunt */
- 0 /* unknown port for unbound socket */
-};
-
-/*
- * These macros check for overflow of various quantities. These macros
- * assume that file_offset_t is signed and haddr_t and size_t are unsigned.
- *
- * ADDR_OVERFLOW: Checks whether a file address of type `haddr_t'
- * is too large to be represented by the second argument
- * of the file seek function.
- *
- * SIZE_OVERFLOW: Checks whether a buffer size of type `hsize_t' is too
- * large to be represented by the `size_t' type.
- *
- * REGION_OVERFLOW: Checks whether an address and size pair describe data
- * which can be addressed entirely in memory.
- */
-#ifdef H5_HAVE_LSEEK64
-# define file_offset_t off64_t
-#else
-# define file_offset_t off_t
-#endif
-#define MAXADDR (((haddr_t)1<<(8*sizeof(file_offset_t)-1))-1)
-#define ADDR_OVERFLOW(A) (HADDR_UNDEF==(A) || \
- ((A) & ~(haddr_t)MAXADDR))
-#define SIZE_OVERFLOW(Z) ((Z) & ~(hsize_t)MAXADDR)
-#define REGION_OVERFLOW(A,Z) (ADDR_OVERFLOW(A) || SIZE_OVERFLOW(Z) || \
- HADDR_UNDEF==(A)+(Z) || \
- (size_t)((A)+(Z))<(size_t)(A))
-
-/* Function prototypes */
-static void *H5FD_stream_fapl_get (H5FD_t *_stream);
-static H5FD_t *H5FD_stream_open (const char *name, unsigned flags,
- hid_t fapl_id, haddr_t maxaddr);
-static herr_t H5FD_stream_flush (H5FD_t *_stream, hid_t dxpl_id, unsigned closing);
-static herr_t H5FD_stream_close (H5FD_t *_stream);
-static herr_t H5FD_stream_query(const H5FD_t *_f1, unsigned long *flags);
-static haddr_t H5FD_stream_get_eoa (const H5FD_t *_stream, H5FD_mem_t type);
-static herr_t H5FD_stream_set_eoa (H5FD_t *_stream, H5FD_mem_t type, haddr_t addr);
-static haddr_t H5FD_stream_get_eof (const H5FD_t *_stream);
-static herr_t H5FD_stream_get_handle(H5FD_t *_file, hid_t fapl, void** file_handle);
-static herr_t H5FD_stream_read (H5FD_t *_stream, H5FD_mem_t type,
- hid_t fapl_id, haddr_t addr,
- size_t size, void *buf);
-static herr_t H5FD_stream_write (H5FD_t *_stream, H5FD_mem_t type,
- hid_t fapl_id, haddr_t addr,
- size_t size, const void *buf);
-
-/* The Stream VFD's class information structure */
-static const H5FD_class_t H5FD_stream_g = {
- "stream", /*name */
- MAXADDR, /*maxaddr */
- H5F_CLOSE_WEAK, /*fc_degree */
- NULL, /*sb_size */
- NULL, /*sb_encode */
- NULL, /*sb_decode */
- sizeof (H5FD_stream_fapl_t), /*fapl_size */
- H5FD_stream_fapl_get, /*fapl_get */
- NULL, /*fapl_copy */
- NULL, /*fapl_free */
- 0, /*dxpl_size */
- NULL, /*dxpl_copy */
- NULL, /*dxpl_free */
- H5FD_stream_open, /*open */
- H5FD_stream_close, /*close */
- NULL, /*cmp */
- H5FD_stream_query, /*query */
- NULL, /*alloc */
- NULL, /*free */
- H5FD_stream_get_eoa, /*get_eoa */
- H5FD_stream_set_eoa, /*set_eoa */
- H5FD_stream_get_eof, /*get_eof */
- H5FD_stream_get_handle, /*get_handle */
- H5FD_stream_read, /*read */
- H5FD_stream_write, /*write */
- H5FD_stream_flush, /*flush */
- NULL, /*lock */
- NULL, /*unlock */
- H5FD_FLMAP_SINGLE /*fl_map */
-};
-
-
-/*--------------------------------------------------------------------------
-NAME
- H5FD_stream_init_interface -- Initialize interface-specific information
-USAGE
- herr_t H5FD_stream_init_interface()
-
-RETURNS
- Non-negative on success/Negative on failure
-DESCRIPTION
- Initializes any interface-specific data or routines. (Just calls
- H5FD_stream_init currently).
-
---------------------------------------------------------------------------*/
-static herr_t
-H5FD_stream_init_interface(void)
-{
- FUNC_ENTER_NOAPI_NOINIT_NOFUNC(H5FD_stream_init_interface)
-
- FUNC_LEAVE_NOAPI(H5FD_stream_init())
-} /* H5FD_stream_init_interface() */
-
-
-/*-------------------------------------------------------------------------
- * Function: H5FD_stream_init
- *
- * Purpose: Initialize this driver by registering it with the library.
- *
- * Return: Success: The driver ID for the Stream driver.
- * Failure: Negative.
- *
- * Programmer: Thomas Radke
- * Tuesday, September 12, 2000
- *
- * Modifications:
- *
- *-------------------------------------------------------------------------
- */
-hid_t H5FD_stream_init (void)
-{
- hid_t ret_value=H5FD_STREAM_g; /* Return value */
-
- FUNC_ENTER_NOAPI(H5FD_stream_init, FAIL)
-
- if (H5I_VFL != H5Iget_type (H5FD_STREAM_g)) {
- H5FD_STREAM_g = H5FD_register (&H5FD_stream_g,sizeof(H5FD_class_t));
-
- /* set the process signal mask to ignore SIGPIPE signals */
- /* NOTE: Windows doesn't know SIGPIPE signals that's why the #ifdef */
-#ifdef SIGPIPE
- if (signal (SIGPIPE, SIG_IGN) == SIG_ERR)
- fprintf (stderr, "Stream VFD warning: failed to set the process signal "
- "mask to ignore SIGPIPE signals\n");
-#endif
- }
-
- /* Set return value */
- ret_value=H5FD_STREAM_g;
-
-done:
- FUNC_LEAVE_NOAPI(ret_value)
-}
-
-
-/*---------------------------------------------------------------------------
- * Function: H5FD_stream_term
- *
- * Purpose: Shut down the VFD
- *
- * Return: <none>
- *
- * Programmer: Quincey Koziol
- * Friday, Jan 30, 2004
- *
- * Modification:
- *
- *---------------------------------------------------------------------------
- */
-void
-H5FD_stream_term(void)
-{
- FUNC_ENTER_NOAPI_NOINIT_NOFUNC(H5FD_stream_term)
-
- /* Reset VFL ID */
- H5FD_STREAM_g=0;
-
- FUNC_LEAVE_NOAPI_VOID
-} /* end H5FD_stream_term() */
-
-
-/*-------------------------------------------------------------------------
- * Function: H5Pset_fapl_stream
- *
- * Purpose: Modify the file access property list to use the Stream
- * driver defined in this source file. The INCREMENT specifies
- * how much to grow the memory each time we need more.
- * If a valid socket argument is given this will be used
- * by the driver instead of parsing the 'hostname:port' filename
- * and opening a socket internally.
- *
- * Return: Success: Non-negative
- * Failure: Negative
- *
- * Programmer: Thomas Radke
- * Tuesday, September 12, 2000
- *
- * Modifications:
- *
- *-------------------------------------------------------------------------
- */
-herr_t H5Pset_fapl_stream (hid_t fapl_id, H5FD_stream_fapl_t *fapl)
-{
- H5FD_stream_fapl_t user_fapl;
- H5P_genplist_t *plist; /* Property list pointer */
- herr_t ret_value=SUCCEED; /* Return value */
-
- FUNC_ENTER_API(H5Pset_fapl_stream, FAIL)
- H5TRACE2 ("e", "ix", fapl_id, fapl);
-
- if(NULL == (plist = H5P_object_verify(fapl_id,H5P_FILE_ACCESS)))
- HGOTO_ERROR (H5E_PLIST, H5E_BADTYPE, FAIL, "not a fapl")
-
- if (fapl) {
- if (! fapl->do_socket_io && fapl->broadcast_fn == NULL)
- HGOTO_ERROR (H5E_ARGS, H5E_BADVALUE, FAIL, "read broadcast function pointer is NULL")
-
- user_fapl = *fapl;
- if (fapl->increment == 0)
- user_fapl.increment = H5FD_STREAM_INCREMENT;
- user_fapl.port = 0;
- ret_value = H5P_set_driver (plist, H5FD_STREAM, &user_fapl);
- }
- else
- ret_value = H5P_set_driver (plist, H5FD_STREAM, &default_fapl);
-
-done:
- FUNC_LEAVE_API(ret_value)
-}
-
-
-/*-------------------------------------------------------------------------
- * Function: H5Pget_fapl_stream
- *
- * Purpose: Queries properties set by the H5Pset_fapl_stream() function.
- *
- * Return: Success: Non-negative
- * Failure: Negative
- *
- * Programmer: Thomas Radke
- * Tuesday, September 12, 2000
- *
- * Modifications:
- *
- *-------------------------------------------------------------------------
- */
-herr_t H5Pget_fapl_stream(hid_t fapl_id, H5FD_stream_fapl_t *fapl /* out */)
-{
- H5FD_stream_fapl_t *this_fapl;
- H5P_genplist_t *plist; /* Property list pointer */
- herr_t ret_value=SUCCEED; /* Return value */
-
- FUNC_ENTER_API(H5Pget_fapl_stream, FAIL)
- H5TRACE2("e","ix",fapl_id,fapl);
-
- if(NULL == (plist = H5P_object_verify(fapl_id,H5P_FILE_ACCESS)))
- HGOTO_ERROR (H5E_PLIST, H5E_BADTYPE, FAIL, "not a fapl")
- if (H5FD_STREAM != H5P_get_driver (plist))
- HGOTO_ERROR (H5E_PLIST, H5E_BADVALUE, FAIL, "incorrect VFL driver")
- if (NULL == (this_fapl = H5P_get_driver_info (plist)))
- HGOTO_ERROR (H5E_PLIST, H5E_BADVALUE, FAIL, "bad VFL driver info")
-
- if (fapl)
- *fapl = *this_fapl;
-
-done:
- FUNC_LEAVE_API(ret_value)
-}
-
-
-/*-------------------------------------------------------------------------
- * Function: H5FD_stream_fapl_get
- *
- * Purpose: Returns a copy of the file access properties
- *
- * Return: Success: Ptr to new file access properties
- * Failure: NULL
- *
- * Programmer: Thomas Radke
- * Tuesday, September 12, 2000
- *
- * Modifications:
- *
- *-------------------------------------------------------------------------
- */
-static void *
-H5FD_stream_fapl_get (H5FD_t *_stream)
-{
- H5FD_stream_t *stream = (H5FD_stream_t *) _stream;
- H5FD_stream_fapl_t *fapl;
- void *ret_value;
-
- FUNC_ENTER_NOAPI(H5FD_stream_fapl_get, NULL)
-
- if ((fapl = H5MM_calloc (sizeof (H5FD_stream_fapl_t))) == NULL)
- HGOTO_ERROR (H5E_RESOURCE, H5E_NOSPACE, NULL, "memory allocation failed")
-
- *fapl = stream->fapl;
-
- /* Set return value */
- ret_value=fapl;
-
-done:
- FUNC_LEAVE_NOAPI(ret_value)
-}
-
-
-static H5FD_STREAM_SOCKET_TYPE
-H5FD_stream_open_socket (const char *filename, int o_flags,
- H5FD_stream_fapl_t *fapl)
-{
- struct sockaddr_in server;
- struct hostent *he;
- H5FD_STREAM_SOCKET_TYPE sock=H5FD_STREAM_INVALID_SOCKET;
- char *hostname=NULL;
- unsigned short int first_port;
- const char *separator, *tmp;
- int on = 1;
- H5FD_STREAM_SOCKET_TYPE ret_value=H5FD_STREAM_INVALID_SOCKET;
-
- FUNC_ENTER_NOAPI_NOINIT(H5FD_stream_open_socket)
-
- /* Parse "hostname:port" from filename argument */
- for (separator = filename; *separator != ':' && *separator; separator++)
- ;
- if (separator == filename || !*separator) {
- HGOTO_ERROR(H5E_ARGS,H5E_BADVALUE,H5FD_STREAM_INVALID_SOCKET,"invalid host address")
- } else {
- tmp = separator;
- if (! tmp[1])
- HGOTO_ERROR(H5E_ARGS,H5E_BADVALUE,H5FD_STREAM_INVALID_SOCKET,"no port number")
- while (*++tmp) {
- if (! isdigit (*tmp))
- HGOTO_ERROR(H5E_ARGS,H5E_BADVALUE,H5FD_STREAM_INVALID_SOCKET,"invalid port number")
- }
- }
-
- hostname = (char *) H5MM_malloc ((size_t)(separator - filename + 1));
-
- /* Return if out of memory */
- if (hostname == NULL)
- HGOTO_ERROR(H5E_RESOURCE,H5E_NOSPACE,H5FD_STREAM_INVALID_SOCKET,"memory allocation failed")
-
- HDstrncpy (hostname, filename, (size_t)(separator - filename));
- hostname[separator - filename] = 0;
- fapl->port = atoi (separator + 1);
-
- HDmemset (&server, 0, sizeof (server));
- server.sin_family = AF_INET;
- server.sin_port = htons (fapl->port);
-
- if (! (he = gethostbyname (hostname))) {
- HGOTO_ERROR(H5E_RESOURCE,H5E_NOSPACE,H5FD_STREAM_INVALID_SOCKET,"unable to get host address")
- } else if (H5FD_STREAM_ERROR_CHECK (sock = socket (AF_INET, SOCK_STREAM, 0)))
- HGOTO_ERROR(H5E_RESOURCE,H5E_NOSPACE,H5FD_STREAM_INVALID_SOCKET,"unable to open socket")
-
- if (O_RDONLY == o_flags) {
- HDmemcpy (&server.sin_addr, he->h_addr, (size_t)he->h_length);
-#ifdef DEBUG
- fprintf (stderr, "Stream VFD: connecting to host '%s' port %d\n",
- hostname, fapl->port);
-#endif
- if (connect (sock, (struct sockaddr *) &server, (socklen_t)sizeof (server)) < 0)
- HGOTO_ERROR(H5E_RESOURCE,H5E_NOSPACE,H5FD_STREAM_INVALID_SOCKET,"unable to connect")
- }
- else {
- server.sin_addr.s_addr = INADDR_ANY;
- if (H5FD_STREAM_IOCTL_SOCKET (sock, (int)FIONBIO, &on) < 0) {
- HGOTO_ERROR(H5E_RESOURCE,H5E_NOSPACE,H5FD_STREAM_INVALID_SOCKET,"unable to set non-blocking mode for socket")
- } else if (setsockopt (sock, IPPROTO_TCP, TCP_NODELAY, (const char *) &on,
- (socklen_t)sizeof(on)) < 0) {
- HGOTO_ERROR(H5E_RESOURCE,H5E_NOSPACE,H5FD_STREAM_INVALID_SOCKET,"unable to set socket option TCP_NODELAY")
- } else if (setsockopt (sock, SOL_SOCKET, SO_REUSEADDR, (const char *) &on,
- (socklen_t)sizeof(on)) < 0) {
- HGOTO_ERROR(H5E_RESOURCE,H5E_NOSPACE,H5FD_STREAM_INVALID_SOCKET,"unable to set socket option SO_REUSEADDR")
- } else {
- /* Try to bind the socket to the given port.
- If maxhunt is given try some successive ports also. */
- first_port = fapl->port;
- while (fapl->port <= first_port + fapl->maxhunt) {
-#ifdef DEBUG
- fprintf (stderr, "Stream VFD: binding to port %d\n", fapl->port);
-#endif
- server.sin_port = htons (fapl->port);
- if (bind (sock, (struct sockaddr *) &server, sizeof (server)) < 0)
- fapl->port++;
- else
- break;
- }
- if (fapl->port > first_port + fapl->maxhunt) {
- fapl->port = 0;
- HGOTO_ERROR(H5E_RESOURCE,H5E_NOSPACE,H5FD_STREAM_INVALID_SOCKET,"unable to bind socket")
- }
- else if (listen (sock, fapl->backlog) < 0)
- HGOTO_ERROR(H5E_RESOURCE,H5E_NOSPACE,H5FD_STREAM_INVALID_SOCKET,"unable to listen on socket")
- }
- }
-
- /* Set return value for success */
- ret_value=sock;
-
-done:
- /* Cleanup variables */
- if(hostname!=NULL)
- hostname=H5MM_xfree(hostname);
-
- /* Clean up on error */
- if(ret_value==H5FD_STREAM_INVALID_SOCKET) {
- if (!H5FD_STREAM_ERROR_CHECK(sock))
- H5FD_STREAM_CLOSE_SOCKET(sock);
- } /* end if */
-
- FUNC_LEAVE_NOAPI(ret_value)
-}
-
-
-static herr_t
-H5FD_stream_read_from_socket (H5FD_stream_t *stream)
-{
- int size;
- size_t max_size = 0;
- unsigned char *ptr=NULL;
- herr_t ret_value=SUCCEED;
-
- FUNC_ENTER_NOAPI_NOINIT(H5FD_stream_read_from_socket)
-
- stream->eof = 0;
- stream->mem = NULL;
-
- while (1) {
- if (max_size <= 0) {
- /*
- * Allocate initial buffer as increment + 1
- * to prevent unnecessary reallocation
- * if increment is exactly a multiple of the filesize
- */
- max_size = stream->fapl.increment;
- if (! stream->mem)
- max_size++;
- ptr = H5MM_realloc (stream->mem, (size_t) (stream->eof + max_size));
- if (! ptr)
- HGOTO_ERROR(H5E_RESOURCE,H5E_NOSPACE,FAIL,"unable to allocate file space buffer")
- stream->mem = ptr;
- ptr += stream->eof;
- }
-
- /* now receive the next chunk of data */
- size = recv (stream->socket, ptr, max_size, 0);
-
- if (size < 0 && (EINTR == errno || EAGAIN == errno || EWOULDBLOCK))
- continue;
- if (size < 0)
- HGOTO_ERROR(H5E_IO,H5E_READERROR,FAIL,"error reading from file from socket")
- if (! size)
- break;
- max_size -= (size_t) size;
- stream->eof += (haddr_t) size;
- ptr += size;
-#ifdef DEBUG
- fprintf (stderr, "Stream VFD: read %d bytes (%d total) from socket\n",
- size, (int) stream->eof);
-#endif
- }
-
-#ifdef DEBUG
- fprintf (stderr, "Stream VFD: read total of %d bytes from socket\n",
- (int) stream->eof);
-#endif
-done:
- FUNC_LEAVE_NOAPI(ret_value)
-}
-
-
-/*-------------------------------------------------------------------------
- * Function: H5FD_stream_open
- *
- * Purpose: Opens an HDF5 file in memory.
- *
- * Return: Success: A pointer to a new file data structure. The
- * public fields will be initialized by the
- * caller, which is always H5FD_open().
- * Failure: NULL
- *
- * Programmer: Thomas Radke
- * Tuesday, September 12, 2000
- *
- * Modifications:
- *
- *-------------------------------------------------------------------------
- */
-static H5FD_t *
-H5FD_stream_open (const char *filename,
- unsigned flags,
- hid_t fapl_id,
- haddr_t maxaddr)
-{
- H5FD_stream_t *stream=NULL;
- const H5FD_stream_fapl_t *fapl;
- int o_flags;
-#ifdef _WIN32
- WSADATA wsadata;
-#endif
- H5P_genplist_t *plist=NULL; /* Property list pointer */
- H5FD_t *ret_value; /* Function return value */
-
- FUNC_ENTER_NOAPI(H5FD_stream_open, NULL)
-
- /* Check arguments */
- if (filename == NULL|| *filename == '\0')
- HGOTO_ERROR (H5E_ARGS, H5E_BADVALUE, NULL,"invalid file name")
- if (maxaddr == 0 || HADDR_UNDEF == maxaddr)
- HGOTO_ERROR (H5E_ARGS, H5E_BADRANGE, NULL, "bogus maxaddr")
- if (ADDR_OVERFLOW (maxaddr))
- HGOTO_ERROR (H5E_ARGS, H5E_OVERFLOW, NULL, "maxaddr overflow")
-
- /* Build the open flags */
- o_flags = (H5F_ACC_RDWR & flags) ? O_RDWR : O_RDONLY;
- if (H5F_ACC_TRUNC & flags) o_flags |= O_TRUNC;
- if (H5F_ACC_CREAT & flags) o_flags |= O_CREAT;
- if (H5F_ACC_EXCL & flags) o_flags |= O_EXCL;
-
- if ((O_RDWR & o_flags) && ! (O_CREAT & o_flags))
- HGOTO_ERROR (H5E_ARGS, H5E_UNSUPPORTED, NULL, "open stream for read/write not supported")
-
-#ifdef _WIN32
- if (WSAStartup (MAKEWORD (2, 0), &wsadata))
- HGOTO_ERROR (H5E_IO, H5E_CANTINIT, NULL, "Couldn't start Win32 socket layer")
-#endif
-
- fapl = NULL;
- if (H5P_FILE_ACCESS_DEFAULT != fapl_id) {
- if(NULL == (plist = H5P_object_verify(fapl_id,H5P_FILE_ACCESS)))
- HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, NULL, "not a file access property list")
- fapl = H5P_get_driver_info (plist);
- }
- if (fapl == NULL)
- fapl = &default_fapl;
-
- /* Create the new file struct */
- stream = (H5FD_stream_t *) H5MM_calloc (sizeof (H5FD_stream_t));
- if (stream == NULL)
- HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, NULL, "unable to allocate file struct")
- stream->fapl = *fapl;
- stream->socket = H5FD_STREAM_INVALID_SOCKET;
-
- /* if an external socket is provided with the file access property list
- we use that, otherwise the filename argument is parsed and a socket
- is opened internally */
- if (fapl->do_socket_io) {
- if (! H5FD_STREAM_ERROR_CHECK (fapl->socket)) {
- stream->internal_socket = FALSE;
- stream->socket = fapl->socket;
- }
- else {
- stream->internal_socket = TRUE;
- stream->socket = H5FD_stream_open_socket (filename, o_flags, &stream->fapl);
- if (stream->socket != H5FD_STREAM_INVALID_SOCKET) {
- /* update the port ID in the file access property
- so that it can be queried via H5P_get_fapl_stream() later on */
- H5P_set_driver (plist, H5FD_STREAM, &stream->fapl);
- }
- else
- HGOTO_ERROR(H5E_IO, H5E_CANTOPENFILE, NULL, "can't open internal socket")
- }
- }
-
- /* read the data from socket into memory */
- if (O_RDONLY == o_flags) {
- if (fapl->do_socket_io) {
-#ifdef DEBUG
- fprintf (stderr, "Stream VFD: reading file from socket\n");
-#endif
- if(H5FD_stream_read_from_socket (stream)<0)
- HGOTO_ERROR(H5E_IO, H5E_READERROR, NULL, "can't read file from socket")
- }
-
- /* Now call the user's broadcast routine if given */
- if (fapl->broadcast_fn) {
- if ((fapl->broadcast_fn) (&stream->mem, &stream->eof,
- fapl->broadcast_arg) < 0)
- HGOTO_ERROR(H5E_IO, H5E_READERROR, NULL, "broadcast error")
-
- /* check for filesize of zero bytes */
- if (stream->eof == 0)
- HGOTO_ERROR(H5E_IO, H5E_READERROR, NULL, "zero filesize")
- }
-
- /* For files which are read from a socket:
- the opened socket is not needed anymore */
- if (stream->internal_socket && ! H5FD_STREAM_ERROR_CHECK (stream->socket))
- H5FD_STREAM_CLOSE_SOCKET (stream->socket);
- stream->socket = H5FD_STREAM_INVALID_SOCKET;
- }
-
- /* Set return value on success */
- ret_value=(H5FD_t*)stream;
-
-done:
- if(ret_value==NULL) {
- if(stream!=NULL) {
- if (stream->mem)
- H5MM_xfree (stream->mem);
- if (stream->internal_socket && ! H5FD_STREAM_ERROR_CHECK (stream->socket))
- H5FD_STREAM_CLOSE_SOCKET (stream->socket);
- H5MM_xfree(stream);
- } /* end if */
- }
-
- FUNC_LEAVE_NOAPI(ret_value)
-}
-
-
-/*-------------------------------------------------------------------------
- * Function: H5FD_stream_flush
- *
- * Purpose: Flushes the file via sockets to any connected clients
- * if its dirty flag is set.
- *
- * Return: Success: 0
- * Failure: -1
- *
- * Programmer: Thomas Radke
- * Tuesday, September 12, 2000
- *
- * Modifications:
- *
- *-------------------------------------------------------------------------
- */
-static herr_t
-H5FD_stream_flush (H5FD_t *_stream, hid_t UNUSED dxpl_id, unsigned UNUSED closing)
-{
- H5FD_stream_t *stream = (H5FD_stream_t *) _stream;
- size_t size;
- ssize_t bytes_send;
- int on = 1;
- unsigned char *ptr;
- struct sockaddr from;
- socklen_t fromlen;
- H5FD_STREAM_SOCKET_TYPE sock;
- herr_t ret_value=SUCCEED; /* Return value */
-
- FUNC_ENTER_NOAPI(H5FD_stream_flush, FAIL)
-
- /* Write to backing store */
- if (stream->dirty && ! H5FD_STREAM_ERROR_CHECK (stream->socket)) {
-#ifdef DEBUG
- fprintf (stderr, "Stream VFD: accepting client connections\n");
-#endif
- fromlen = sizeof (from);
- while (! H5FD_STREAM_ERROR_CHECK (sock = accept (stream->socket,
- &from, &fromlen))) {
- if (H5FD_STREAM_IOCTL_SOCKET (sock, (int)FIONBIO, &on) < 0) {
- H5FD_STREAM_CLOSE_SOCKET (sock);
- continue; /* continue the loop for other clients to connect */
- }
-
- size = stream->eof;
- ptr = stream->mem;
-
- while (size) {
- bytes_send = send (sock, ptr, size, 0);
- if (bytes_send < 0) {
- if (EINTR == errno || EAGAIN == errno || EWOULDBLOCK == errno)
- continue;
-
- /* continue the outermost loop for other clients to connect */
- break;
- }
- ptr += bytes_send;
- size -= bytes_send;
-#ifdef DEBUG
- fprintf (stderr, "Stream VFD: wrote %d bytes to socket, %d in total, "
- "%d left\n", bytes_send, (int) (ptr - stream->mem), size);
-#endif
- }
- H5FD_STREAM_CLOSE_SOCKET (sock);
- }
- stream->dirty = FALSE;
- }
-
-done:
- FUNC_LEAVE_NOAPI(ret_value)
-}
-
-
-/*-------------------------------------------------------------------------
- * Function: H5FD_stream_close
- *
- * Purpose: Closes the file.
- *
- * Return: Success: 0
- * Failure: -1
- *
- * Programmer: Thomas Radke
- * Tuesday, September 12, 2000
- *
- * Modifications:
- *
- *-------------------------------------------------------------------------
- */
-static herr_t
-H5FD_stream_close (H5FD_t *_stream)
-{
- H5FD_stream_t *stream = (H5FD_stream_t *) _stream;
- herr_t ret_value=SUCCEED; /* Return value */
-
- FUNC_ENTER_NOAPI(H5FD_stream_close, FAIL)
-
- /* Release resources */
- if (! H5FD_STREAM_ERROR_CHECK (stream->socket) && stream->internal_socket)
- H5FD_STREAM_CLOSE_SOCKET (stream->socket);
- if (stream->mem)
- H5MM_xfree (stream->mem);
- HDmemset (stream, 0, sizeof (H5FD_stream_t));
- H5MM_xfree (stream);
-
-done:
- FUNC_LEAVE_NOAPI(ret_value)
-}
-
-
-/*-------------------------------------------------------------------------
- * Function: H5FD_stream_query
- *
- * Purpose: Set the flags that this VFL driver is capable of supporting.
- * (listed in H5FDpublic.h)
- *
- * Return: Success: non-negative
- *
- * Failure: negative
- *
- * Programmer: Quincey Koziol
- * Tuesday, September 26, 2000
- *
- * Modifications:
- *
- *-------------------------------------------------------------------------
- */
-static herr_t
-H5FD_stream_query(const H5FD_t UNUSED * _f,
- unsigned long *flags/*out*/)
-{
- herr_t ret_value=SUCCEED; /* Return value */
-
- FUNC_ENTER_NOAPI(H5FD_stream_query, SUCCEED)
-
- /* Set the VFL feature flags that this driver supports */
- if (flags) {
- *flags = 0;
- /* OK to perform data sieving for faster raw data reads & writes */
- *flags |= H5FD_FEAT_DATA_SIEVE;
- *flags|=H5FD_FEAT_AGGREGATE_SMALLDATA; /* OK to aggregate "small" raw data allocations */
- }
-
-done:
- FUNC_LEAVE_NOAPI(ret_value)
-}
-
-
-/*-------------------------------------------------------------------------
- * Function: H5FD_stream_get_eoa
- *
- * Purpose: Gets the end-of-address marker for the file. The EOA marker
- * is the first address past the last byte allocated in the
- * format address space.
- *
- * Return: Success: The end-of-address marker.
- * Failure: HADDR_UNDEF
- *
- * Programmer: Thomas Radke
- * Tuesday, September 12, 2000
- *
- * Modifications:
- * Raymond Lu
- * 21 Dec. 2006
- * Added the parameter TYPE. It's only used for MULTI driver.
- *
- *-------------------------------------------------------------------------
- */
-static haddr_t
-H5FD_stream_get_eoa (const H5FD_t *_stream, H5FD_mem_t UNUSED type)
-{
- const H5FD_stream_t *stream = (const H5FD_stream_t *) _stream;
- haddr_t ret_value; /* Return value */
-
- FUNC_ENTER_NOAPI(H5FD_stream_get_eoa, HADDR_UNDEF)
-
- /* Set return value */
- ret_value=stream->eoa;
-
-done:
- FUNC_LEAVE_NOAPI(ret_value)
-}
-
-
-/*-------------------------------------------------------------------------
- * Function: H5FD_stream_set_eoa
- *
- * Purpose: Set the end-of-address marker for the file. This function is
- * called shortly after an existing HDF5 file is opened in order
- * to tell the driver where the end of the HDF5 data is located.
- *
- * Return: Success: 0
- * Failure: -1
- *
- * Programmer: Thomas Radke
- * Tuesday, September 12, 2000
- *
- * Modifications:
- * Raymond Lu
- * 21 Dec. 2006
- * Added the parameter TYPE. It's only used for MULTI driver.
- *
- *-------------------------------------------------------------------------
- */
-static herr_t
-H5FD_stream_set_eoa (H5FD_t *_stream, H5FD_mem_t UNUSED type, haddr_t addr)
-{
- H5FD_stream_t *stream = (H5FD_stream_t *) _stream;
- herr_t ret_value=SUCCEED; /* Return value */
-
- FUNC_ENTER_NOAPI(H5FD_stream_set_eoa, FAIL)
-
- if (ADDR_OVERFLOW (addr))
- HGOTO_ERROR (H5E_ARGS, H5E_OVERFLOW, FAIL, "address overflow")
-
- stream->eoa = addr;
-
-done:
- FUNC_LEAVE_NOAPI(ret_value)
-}
-
-
-/*-------------------------------------------------------------------------
- * Function: H5FD_stream_get_eof
- *
- * Purpose: Returns the end-of-file marker, which is the greater of
- * either the size of the underlying memory or the HDF5
- * end-of-address markers.
- *
- * Return: Success: End of file address, the first address past
- * the end of the "file", either the memory
- * or the HDF5 file.
- * Failure: HADDR_UNDEF
- *
- * Programmer: Thomas Radke
- * Tuesday, September 12, 2000
- *
- * Modifications:
- *
- *-------------------------------------------------------------------------
- */
-static haddr_t
-H5FD_stream_get_eof (const H5FD_t *_stream)
-{
- const H5FD_stream_t *stream = (const H5FD_stream_t *) _stream;
- haddr_t ret_value; /* Return value */
-
- FUNC_ENTER_NOAPI(H5FD_stream_get_eof, HADDR_UNDEF)
-
- /* Set return value */
- ret_value= MAX (stream->eof, stream->eoa);
-
-done:
- FUNC_LEAVE_NOAPI(ret_value)
-}
-
-
-/*-------------------------------------------------------------------------
- * Function: H5FD_stream_get_handle
- *
- * Purpose: Returns the file handle of stream file driver.
- *
- * Returns: Non-negative if succeed or negative if fails.
- *
- * Programmer: Raymond Lu
- * Sept. 16, 2002
- *
- * Modifications:
- *
- *-------------------------------------------------------------------------
- */
-static herr_t
-H5FD_stream_get_handle(H5FD_t *_file, hid_t UNUSED fapl, void** file_handle)
-{
- H5FD_stream_t *file = (H5FD_stream_t *)_file;
- herr_t ret_value = SUCCEED;
-
- FUNC_ENTER_NOAPI(H5FD_stream_get_handle, FAIL)
-
- if(!file_handle)
- HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "file handle not valid")
-
- *file_handle = &(file->socket);
-
-done:
- FUNC_LEAVE_NOAPI(ret_value)
-}
-
-
-/*-------------------------------------------------------------------------
- * Function: H5FD_stream_read
- *
- * Purpose: Reads SIZE bytes of data from FILE beginning at address ADDR
- * into buffer BUF according to data transfer properties in
- * DXPL_ID.
- *
- * Return: Success: 0
- * Result is stored in caller-supplied buffer BUF
- * Failure: -1
- * Contents of buffer BUF are undefined
- *
- * Programmer: Thomas Radke
- * Tuesday, September 12, 2000
- *
- * Modifications:
- *
- *-------------------------------------------------------------------------
- */
-static herr_t
-H5FD_stream_read (H5FD_t *_stream,
- H5FD_mem_t UNUSED type,
- hid_t UNUSED dxpl_id,
- haddr_t addr,
- size_t size,
- void *buf /*out*/)
-{
- H5FD_stream_t *stream = (H5FD_stream_t *) _stream;
- size_t nbytes;
- herr_t ret_value=SUCCEED; /* Return value */
-
- FUNC_ENTER_NOAPI(H5FD_stream_read, FAIL)
-
- assert (stream && stream->pub.cls);
- assert (buf);
-
- /* Check for overflow conditions */
- if (HADDR_UNDEF == addr)
- HGOTO_ERROR (H5E_IO, H5E_OVERFLOW, FAIL, "file address overflowed")
- if (REGION_OVERFLOW (addr, size))
- HGOTO_ERROR (H5E_IO, H5E_OVERFLOW, FAIL, "file address overflowed")
- if (addr + size > stream->eoa)
- HGOTO_ERROR (H5E_IO, H5E_OVERFLOW, FAIL, "file address overflowed")
-
- /* Read the part which is before the EOF marker */
- if (addr < stream->eof) {
- nbytes = MIN (size, stream->eof - addr);
- HDmemcpy (buf, stream->mem + addr, nbytes);
- size -= nbytes;
- addr += nbytes;
- buf = (char *) buf + nbytes;
- }
-
- /* Read zeros for the part which is after the EOF markers */
- if (size > 0)
- HDmemset (buf, 0, size);
-
-done:
- FUNC_LEAVE_NOAPI(ret_value)
-}
-
-
-/*-------------------------------------------------------------------------
- * Function: H5FD_stream_write
- *
- * Purpose: Writes SIZE bytes of data to FILE beginning at address ADDR
- * from buffer BUF according to data transfer properties in
- * DXPL_ID.
- *
- * Return: Success: Zero
- * Failure: -1
- *
- * Programmer: Thomas Radke
- * Tuesday, September 12, 2000
- *
- * Modifications:
- *
- *-------------------------------------------------------------------------
- */
-static herr_t
-H5FD_stream_write (H5FD_t *_stream,
- H5FD_mem_t UNUSED type,
- hid_t UNUSED dxpl_id,
- haddr_t addr,
- size_t size,
- const void *buf)
-{
- H5FD_stream_t *stream = (H5FD_stream_t *) _stream;
- herr_t ret_value=SUCCEED; /* Return value */
-
- FUNC_ENTER_NOAPI(H5FD_stream_write, FAIL)
-
- assert (stream && stream->pub.cls);
- assert (buf);
-
- /* Check for overflow conditions */
- if (REGION_OVERFLOW (addr, size))
- HGOTO_ERROR (H5E_IO, H5E_OVERFLOW, FAIL, "file address overflowed")
- if (addr + size > stream->eoa)
- HGOTO_ERROR (H5E_IO, H5E_OVERFLOW, FAIL, "file address overflowed")
-
- /*
- * Allocate more memory if necessary, careful of overflow. Also, if the
- * allocation fails then the file should remain in a usable state. Be
- * careful of non-Posix realloc() that doesn't understand what to do when
- * the first argument is null.
- */
- if (addr + size > stream->eof) {
- unsigned char *x;
- haddr_t new_eof = stream->fapl.increment *
- ((addr+size) / stream->fapl.increment);
-
- if ((addr+size) % stream->fapl.increment)
- new_eof += stream->fapl.increment;
- if (stream->mem == NULL)
- x = H5MM_malloc ((size_t) new_eof);
- else
- x = H5MM_realloc (stream->mem, (size_t) new_eof);
- if (x == NULL)
- HGOTO_ERROR (H5E_RESOURCE, H5E_NOSPACE, FAIL, "unable to allocate memory block")
- stream->mem = x;
- stream->eof = new_eof;
- }
-
- /* Write from BUF to memory */
- HDmemcpy (stream->mem + addr, buf, size);
- stream->dirty = TRUE;
-
-done:
- FUNC_LEAVE_NOAPI(ret_value)
-}
-
-#endif /* H5_HAVE_STREAM */