blob manager commit.
This commit is contained in:
Sears Russell
parent
e083a333b7
commit
0f4dc72e18
4 changed files with 583 additions and 0 deletions
211
doc/Doxyfile-api
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211
doc/Doxyfile-api
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@ -0,0 +1,211 @@
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# Doxyfile 1.3.6-20040222
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#---------------------------------------------------------------------------
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# Project related configuration options
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||||
#---------------------------------------------------------------------------
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PROJECT_NAME = "LLADD API"
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||||
PROJECT_NUMBER = 1
|
||||
OUTPUT_DIRECTORY = doc/api
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||||
OUTPUT_LANGUAGE = English
|
||||
USE_WINDOWS_ENCODING = NO
|
||||
BRIEF_MEMBER_DESC = YES
|
||||
REPEAT_BRIEF = YES
|
||||
ABBREVIATE_BRIEF =
|
||||
ALWAYS_DETAILED_SEC = NO
|
||||
INLINE_INHERITED_MEMB = NO
|
||||
FULL_PATH_NAMES = NO
|
||||
STRIP_FROM_PATH =
|
||||
SHORT_NAMES = NO
|
||||
JAVADOC_AUTOBRIEF = YES
|
||||
MULTILINE_CPP_IS_BRIEF = NO
|
||||
DETAILS_AT_TOP = NO
|
||||
INHERIT_DOCS = YES
|
||||
DISTRIBUTE_GROUP_DOC = NO
|
||||
TAB_SIZE = 8
|
||||
ALIASES =
|
||||
OPTIMIZE_OUTPUT_FOR_C = YES
|
||||
OPTIMIZE_OUTPUT_JAVA = NO
|
||||
SUBGROUPING = YES
|
||||
#---------------------------------------------------------------------------
|
||||
# Build related configuration options
|
||||
#---------------------------------------------------------------------------
|
||||
EXTRACT_ALL = YES
|
||||
EXTRACT_PRIVATE = NO
|
||||
EXTRACT_STATIC = NO
|
||||
EXTRACT_LOCAL_CLASSES = NO
|
||||
HIDE_UNDOC_MEMBERS = NO
|
||||
HIDE_UNDOC_CLASSES = NO
|
||||
HIDE_FRIEND_COMPOUNDS = NO
|
||||
HIDE_IN_BODY_DOCS = NO
|
||||
INTERNAL_DOCS = NO
|
||||
CASE_SENSE_NAMES = YES
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||||
HIDE_SCOPE_NAMES = NO
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||||
SHOW_INCLUDE_FILES = NO
|
||||
INLINE_INFO = YES
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||||
SORT_MEMBER_DOCS = YES
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||||
SORT_BRIEF_DOCS = NO
|
||||
SORT_BY_SCOPE_NAME = NO
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||||
GENERATE_TODOLIST = YES
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||||
GENERATE_TESTLIST = YES
|
||||
GENERATE_BUGLIST = YES
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GENERATE_DEPRECATEDLIST= YES
|
||||
ENABLED_SECTIONS =
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MAX_INITIALIZER_LINES = 30
|
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SHOW_USED_FILES = YES
|
||||
#---------------------------------------------------------------------------
|
||||
# configuration options related to warning and progress messages
|
||||
#---------------------------------------------------------------------------
|
||||
QUIET = NO
|
||||
WARNINGS = YES
|
||||
WARN_IF_UNDOCUMENTED = YES
|
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WARN_IF_DOC_ERROR = YES
|
||||
WARN_FORMAT = "$file:$line: $text"
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WARN_LOGFILE =
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#---------------------------------------------------------------------------
|
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# configuration options related to the input files
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||||
#---------------------------------------------------------------------------
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INPUT = lladd
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# libdfa \
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# pbl
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FILE_PATTERNS = *.h
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RECURSIVE = YES
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EXCLUDE =
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EXCLUDE_SYMLINKS = NO
|
||||
EXCLUDE_PATTERNS = config.h
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||||
EXAMPLE_PATH =
|
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EXAMPLE_PATTERNS =
|
||||
EXAMPLE_RECURSIVE = NO
|
||||
IMAGE_PATH =
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||||
INPUT_FILTER =
|
||||
FILTER_SOURCE_FILES = NO
|
||||
#---------------------------------------------------------------------------
|
||||
# configuration options related to source browsing
|
||||
#---------------------------------------------------------------------------
|
||||
SOURCE_BROWSER = YES
|
||||
INLINE_SOURCES = NO
|
||||
STRIP_CODE_COMMENTS = YES
|
||||
REFERENCED_BY_RELATION = YES
|
||||
REFERENCES_RELATION = YES
|
||||
VERBATIM_HEADERS = YES
|
||||
#---------------------------------------------------------------------------
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# configuration options related to the alphabetical class index
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||||
#---------------------------------------------------------------------------
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ALPHABETICAL_INDEX = YES
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COLS_IN_ALPHA_INDEX = 5
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IGNORE_PREFIX =
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#---------------------------------------------------------------------------
|
||||
# configuration options related to the HTML output
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||||
#---------------------------------------------------------------------------
|
||||
GENERATE_HTML = YES
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HTML_OUTPUT = html
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HTML_FILE_EXTENSION = .html
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HTML_HEADER =
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HTML_FOOTER =
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HTML_STYLESHEET =
|
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HTML_ALIGN_MEMBERS = YES
|
||||
GENERATE_HTMLHELP = YES
|
||||
CHM_FILE =
|
||||
HHC_LOCATION =
|
||||
GENERATE_CHI = NO
|
||||
BINARY_TOC = NO
|
||||
TOC_EXPAND = NO
|
||||
DISABLE_INDEX = NO
|
||||
ENUM_VALUES_PER_LINE = 4
|
||||
GENERATE_TREEVIEW = YES
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TREEVIEW_WIDTH = 250
|
||||
#---------------------------------------------------------------------------
|
||||
# configuration options related to the LaTeX output
|
||||
#---------------------------------------------------------------------------
|
||||
GENERATE_LATEX = NO
|
||||
LATEX_OUTPUT = latex
|
||||
LATEX_CMD_NAME = latex
|
||||
MAKEINDEX_CMD_NAME = makeindex
|
||||
COMPACT_LATEX = NO
|
||||
PAPER_TYPE = a4wide
|
||||
EXTRA_PACKAGES =
|
||||
LATEX_HEADER =
|
||||
PDF_HYPERLINKS = NO
|
||||
USE_PDFLATEX = NO
|
||||
LATEX_BATCHMODE = NO
|
||||
LATEX_HIDE_INDICES = NO
|
||||
#---------------------------------------------------------------------------
|
||||
# configuration options related to the RTF output
|
||||
#---------------------------------------------------------------------------
|
||||
GENERATE_RTF = NO
|
||||
RTF_OUTPUT = rtf
|
||||
COMPACT_RTF = NO
|
||||
RTF_HYPERLINKS = NO
|
||||
RTF_STYLESHEET_FILE =
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RTF_EXTENSIONS_FILE =
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#---------------------------------------------------------------------------
|
||||
# configuration options related to the man page output
|
||||
#---------------------------------------------------------------------------
|
||||
GENERATE_MAN = NO
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||||
MAN_OUTPUT = man
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MAN_EXTENSION = .3
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MAN_LINKS = NO
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||||
#---------------------------------------------------------------------------
|
||||
# configuration options related to the XML output
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||||
#---------------------------------------------------------------------------
|
||||
GENERATE_XML = NO
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||||
XML_OUTPUT = xml
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XML_SCHEMA =
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XML_DTD =
|
||||
XML_PROGRAMLISTING = YES
|
||||
#---------------------------------------------------------------------------
|
||||
# configuration options for the AutoGen Definitions output
|
||||
#---------------------------------------------------------------------------
|
||||
GENERATE_AUTOGEN_DEF = NO
|
||||
#---------------------------------------------------------------------------
|
||||
# configuration options related to the Perl module output
|
||||
#---------------------------------------------------------------------------
|
||||
GENERATE_PERLMOD = NO
|
||||
PERLMOD_LATEX = NO
|
||||
PERLMOD_PRETTY = YES
|
||||
PERLMOD_MAKEVAR_PREFIX =
|
||||
#---------------------------------------------------------------------------
|
||||
# Configuration options related to the preprocessor
|
||||
#---------------------------------------------------------------------------
|
||||
ENABLE_PREPROCESSING = YES
|
||||
MACRO_EXPANSION = NO
|
||||
EXPAND_ONLY_PREDEF = NO
|
||||
SEARCH_INCLUDES = YES
|
||||
INCLUDE_PATH =
|
||||
INCLUDE_FILE_PATTERNS =
|
||||
PREDEFINED =
|
||||
EXPAND_AS_DEFINED =
|
||||
SKIP_FUNCTION_MACROS = YES
|
||||
#---------------------------------------------------------------------------
|
||||
# Configuration::additions related to external references
|
||||
#---------------------------------------------------------------------------
|
||||
TAGFILES =
|
||||
GENERATE_TAGFILE =
|
||||
ALLEXTERNALS = NO
|
||||
EXTERNAL_GROUPS = YES
|
||||
PERL_PATH = /usr/bin/perl
|
||||
#---------------------------------------------------------------------------
|
||||
# Configuration options related to the dot tool
|
||||
#---------------------------------------------------------------------------
|
||||
CLASS_DIAGRAMS = YES
|
||||
HIDE_UNDOC_RELATIONS = YES
|
||||
HAVE_DOT = YES
|
||||
CLASS_GRAPH = YES
|
||||
COLLABORATION_GRAPH = YES
|
||||
UML_LOOK = NO
|
||||
TEMPLATE_RELATIONS = YES
|
||||
INCLUDE_GRAPH = YES
|
||||
INCLUDED_BY_GRAPH = YES
|
||||
CALL_GRAPH = NO
|
||||
GRAPHICAL_HIERARCHY = YES
|
||||
DOT_IMAGE_FORMAT = png
|
||||
DOT_PATH =
|
||||
DOTFILE_DIRS =
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||||
MAX_DOT_GRAPH_WIDTH = 1024
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||||
MAX_DOT_GRAPH_HEIGHT = 1024
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||||
MAX_DOT_GRAPH_DEPTH = 0
|
||||
GENERATE_LEGEND = YES
|
||||
DOT_CLEANUP = YES
|
||||
#---------------------------------------------------------------------------
|
||||
# Configuration::additions related to the search engine
|
||||
#---------------------------------------------------------------------------
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||||
SEARCHENGINE = YES
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||||
222
doc/Doxyfile-developers
Normal file
222
doc/Doxyfile-developers
Normal file
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@ -0,0 +1,222 @@
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# Doxyfile 1.3.6-20040222
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||||
|
||||
#---------------------------------------------------------------------------
|
||||
# Project related configuration options
|
||||
#---------------------------------------------------------------------------
|
||||
PROJECT_NAME = "LLADD Internals"
|
||||
PROJECT_NUMBER = 1
|
||||
OUTPUT_DIRECTORY = doc/developers
|
||||
OUTPUT_LANGUAGE = English
|
||||
USE_WINDOWS_ENCODING = NO
|
||||
BRIEF_MEMBER_DESC = YES
|
||||
REPEAT_BRIEF = YES
|
||||
ABBREVIATE_BRIEF =
|
||||
ALWAYS_DETAILED_SEC = NO
|
||||
INLINE_INHERITED_MEMB = NO
|
||||
FULL_PATH_NAMES = NO
|
||||
STRIP_FROM_PATH =
|
||||
SHORT_NAMES = NO
|
||||
JAVADOC_AUTOBRIEF = YES
|
||||
MULTILINE_CPP_IS_BRIEF = NO
|
||||
DETAILS_AT_TOP = NO
|
||||
INHERIT_DOCS = YES
|
||||
DISTRIBUTE_GROUP_DOC = NO
|
||||
TAB_SIZE = 8
|
||||
ALIASES =
|
||||
OPTIMIZE_OUTPUT_FOR_C = YES
|
||||
OPTIMIZE_OUTPUT_JAVA = NO
|
||||
SUBGROUPING = YES
|
||||
#---------------------------------------------------------------------------
|
||||
# Build related configuration options
|
||||
#---------------------------------------------------------------------------
|
||||
EXTRACT_ALL = YES
|
||||
EXTRACT_PRIVATE = NO
|
||||
EXTRACT_STATIC = NO
|
||||
EXTRACT_LOCAL_CLASSES = YES
|
||||
HIDE_UNDOC_MEMBERS = NO
|
||||
HIDE_UNDOC_CLASSES = NO
|
||||
HIDE_FRIEND_COMPOUNDS = NO
|
||||
HIDE_IN_BODY_DOCS = NO
|
||||
INTERNAL_DOCS = YES
|
||||
CASE_SENSE_NAMES = YES
|
||||
HIDE_SCOPE_NAMES = NO
|
||||
SHOW_INCLUDE_FILES = YES
|
||||
INLINE_INFO = YES
|
||||
SORT_MEMBER_DOCS = YES
|
||||
SORT_BRIEF_DOCS = NO
|
||||
SORT_BY_SCOPE_NAME = NO
|
||||
GENERATE_TODOLIST = YES
|
||||
GENERATE_TESTLIST = YES
|
||||
GENERATE_BUGLIST = YES
|
||||
GENERATE_DEPRECATEDLIST= YES
|
||||
ENABLED_SECTIONS =
|
||||
MAX_INITIALIZER_LINES = 30
|
||||
SHOW_USED_FILES = YES
|
||||
#---------------------------------------------------------------------------
|
||||
# configuration options related to warning and progress messages
|
||||
#---------------------------------------------------------------------------
|
||||
QUIET = NO
|
||||
WARNINGS = YES
|
||||
WARN_IF_UNDOCUMENTED = YES
|
||||
WARN_IF_DOC_ERROR = YES
|
||||
WARN_FORMAT = "$file:$line: $text"
|
||||
WARN_LOGFILE =
|
||||
#---------------------------------------------------------------------------
|
||||
# configuration options related to the input files
|
||||
#---------------------------------------------------------------------------
|
||||
INPUT = lladd \
|
||||
libdfa \
|
||||
pbl \
|
||||
src \
|
||||
test
|
||||
FILE_PATTERNS = *.c \
|
||||
*.h
|
||||
RECURSIVE = YES
|
||||
EXCLUDE =
|
||||
EXCLUDE_SYMLINKS = NO
|
||||
EXCLUDE_PATTERNS =
|
||||
EXAMPLE_PATH =
|
||||
EXAMPLE_PATTERNS =
|
||||
EXAMPLE_RECURSIVE = NO
|
||||
IMAGE_PATH =
|
||||
INPUT_FILTER =
|
||||
FILTER_SOURCE_FILES = NO
|
||||
#---------------------------------------------------------------------------
|
||||
# configuration options related to source browsing
|
||||
#---------------------------------------------------------------------------
|
||||
SOURCE_BROWSER = YES
|
||||
INLINE_SOURCES = YES
|
||||
STRIP_CODE_COMMENTS = YES
|
||||
REFERENCED_BY_RELATION = YES
|
||||
REFERENCES_RELATION = YES
|
||||
VERBATIM_HEADERS = YES
|
||||
#---------------------------------------------------------------------------
|
||||
# configuration options related to the alphabetical class index
|
||||
#---------------------------------------------------------------------------
|
||||
ALPHABETICAL_INDEX = YES
|
||||
COLS_IN_ALPHA_INDEX = 5
|
||||
IGNORE_PREFIX =
|
||||
#---------------------------------------------------------------------------
|
||||
# configuration options related to the HTML output
|
||||
#---------------------------------------------------------------------------
|
||||
GENERATE_HTML = YES
|
||||
HTML_OUTPUT = html
|
||||
HTML_FILE_EXTENSION = .html
|
||||
HTML_HEADER =
|
||||
HTML_FOOTER =
|
||||
HTML_STYLESHEET =
|
||||
HTML_ALIGN_MEMBERS = YES
|
||||
GENERATE_HTMLHELP = YES
|
||||
CHM_FILE =
|
||||
HHC_LOCATION =
|
||||
GENERATE_CHI = NO
|
||||
BINARY_TOC = NO
|
||||
TOC_EXPAND = NO
|
||||
DISABLE_INDEX = NO
|
||||
ENUM_VALUES_PER_LINE = 4
|
||||
GENERATE_TREEVIEW = YES
|
||||
TREEVIEW_WIDTH = 250
|
||||
#---------------------------------------------------------------------------
|
||||
# configuration options related to the LaTeX output
|
||||
#---------------------------------------------------------------------------
|
||||
GENERATE_LATEX = NO
|
||||
LATEX_OUTPUT = latex
|
||||
LATEX_CMD_NAME = latex
|
||||
MAKEINDEX_CMD_NAME = makeindex
|
||||
COMPACT_LATEX = NO
|
||||
PAPER_TYPE = a4wide
|
||||
EXTRA_PACKAGES =
|
||||
LATEX_HEADER =
|
||||
PDF_HYPERLINKS = NO
|
||||
USE_PDFLATEX = NO
|
||||
LATEX_BATCHMODE = NO
|
||||
LATEX_HIDE_INDICES = NO
|
||||
#---------------------------------------------------------------------------
|
||||
# configuration options related to the RTF output
|
||||
#---------------------------------------------------------------------------
|
||||
GENERATE_RTF = NO
|
||||
RTF_OUTPUT = rtf
|
||||
COMPACT_RTF = NO
|
||||
RTF_HYPERLINKS = NO
|
||||
RTF_STYLESHEET_FILE =
|
||||
RTF_EXTENSIONS_FILE =
|
||||
#---------------------------------------------------------------------------
|
||||
# configuration options related to the man page output
|
||||
#---------------------------------------------------------------------------
|
||||
GENERATE_MAN = NO
|
||||
MAN_OUTPUT = man
|
||||
MAN_EXTENSION = .3
|
||||
MAN_LINKS = NO
|
||||
#---------------------------------------------------------------------------
|
||||
# configuration options related to the XML output
|
||||
#---------------------------------------------------------------------------
|
||||
GENERATE_XML = NO
|
||||
XML_OUTPUT = xml
|
||||
XML_SCHEMA =
|
||||
XML_DTD =
|
||||
XML_PROGRAMLISTING = YES
|
||||
#---------------------------------------------------------------------------
|
||||
# configuration options for the AutoGen Definitions output
|
||||
#---------------------------------------------------------------------------
|
||||
GENERATE_AUTOGEN_DEF = NO
|
||||
#---------------------------------------------------------------------------
|
||||
# configuration options related to the Perl module output
|
||||
#---------------------------------------------------------------------------
|
||||
GENERATE_PERLMOD = NO
|
||||
PERLMOD_LATEX = NO
|
||||
PERLMOD_PRETTY = YES
|
||||
PERLMOD_MAKEVAR_PREFIX =
|
||||
#---------------------------------------------------------------------------
|
||||
# Configuration options related to the preprocessor
|
||||
#---------------------------------------------------------------------------
|
||||
ENABLE_PREPROCESSING = YES
|
||||
MACRO_EXPANSION = NO
|
||||
EXPAND_ONLY_PREDEF = NO
|
||||
SEARCH_INCLUDES = YES
|
||||
INCLUDE_PATH =
|
||||
INCLUDE_FILE_PATTERNS =
|
||||
## Needed for doxygen to make sane documentation from check tests.
|
||||
# or, I'll just write a perl script since it's easier.
|
||||
#PREDEFINED = START_TEST END_TEST
|
||||
EXPAND_AS_DEFINED =
|
||||
SKIP_FUNCTION_MACROS = NO
|
||||
#YES
|
||||
QUIET=YES
|
||||
WARNINGS=NO
|
||||
|
||||
# Muh-ha-ha-ha_ha
|
||||
INPUT_FILTER="perl -pe 's/^START_TEST\(([^\)]+)\)/test_$1()/;s/^END_TEST//;'"
|
||||
#---------------------------------------------------------------------------
|
||||
# Configuration::additions related to external references
|
||||
#---------------------------------------------------------------------------
|
||||
TAGFILES =
|
||||
GENERATE_TAGFILE =
|
||||
ALLEXTERNALS = NO
|
||||
EXTERNAL_GROUPS = YES
|
||||
PERL_PATH = /usr/bin/perl
|
||||
#---------------------------------------------------------------------------
|
||||
# Configuration options related to the dot tool
|
||||
#---------------------------------------------------------------------------
|
||||
CLASS_DIAGRAMS = YES
|
||||
HIDE_UNDOC_RELATIONS = YES
|
||||
HAVE_DOT = YES
|
||||
CLASS_GRAPH = YES
|
||||
COLLABORATION_GRAPH = YES
|
||||
UML_LOOK = NO
|
||||
TEMPLATE_RELATIONS = YES
|
||||
INCLUDE_GRAPH = YES
|
||||
INCLUDED_BY_GRAPH = YES
|
||||
CALL_GRAPH = YES
|
||||
GRAPHICAL_HIERARCHY = YES
|
||||
DOT_IMAGE_FORMAT = png
|
||||
DOT_PATH =
|
||||
DOTFILE_DIRS =
|
||||
MAX_DOT_GRAPH_WIDTH = 1024
|
||||
MAX_DOT_GRAPH_HEIGHT = 1024
|
||||
MAX_DOT_GRAPH_DEPTH = 0
|
||||
GENERATE_LEGEND = YES
|
||||
DOT_CLEANUP = YES
|
||||
#---------------------------------------------------------------------------
|
||||
# Configuration::additions related to the search engine
|
||||
#---------------------------------------------------------------------------
|
||||
SEARCHENGINE = YES
|
||||
98
src/lladd/blobManager.c
Normal file
98
src/lladd/blobManager.c
Normal file
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|
@ -0,0 +1,98 @@
|
|||
#include "blobManager.h"
|
||||
#include <lladd/constants.h>
|
||||
#include <lladd/bufferManager.h>
|
||||
#include <lladd/page.h>
|
||||
#include <sys/types.h>
|
||||
#include <sys/stat.h>
|
||||
#include <fcntl.h>
|
||||
#include <unistd.h>
|
||||
|
||||
#include <assert.h>
|
||||
|
||||
static int blobfd0, blobfd1;
|
||||
static pblhashtable_t touchedBlobs;
|
||||
|
||||
/* moved verbatim from bufferManger.c */
|
||||
void openBlobStore() {
|
||||
if( (blobfd0 = open(BLOB0_FILE, O_RDWR, 0)) == -1 ) { /* file may not exist */
|
||||
if( (blobfd0 = creat(BLOB0_FILE, 0666)) == -1 ) { /* cannot even create it */
|
||||
printf("ERROR: %i on %s line %d", errno, __FILE__, __LINE__);
|
||||
assert(0);
|
||||
/* exit(errno); */
|
||||
}
|
||||
if( close(blobfd0) || ((blobfd0 = open(BLOB0_FILE, O_RDWR, 0)) == -1) ) { /* need to reopen with read perms */
|
||||
printf("ERROR: %i on %s line %d", errno, __FILE__, __LINE__);
|
||||
assert(0);
|
||||
/* exit(errno); */
|
||||
}
|
||||
}
|
||||
if( (blobfd1 = open(BLOB1_FILE, O_RDWR, 0)) == -1 ) { /* file may not exist */
|
||||
if( (blobfd1 = creat(BLOB1_FILE, 0666)) == -1 ) { /* cannot even create it */
|
||||
printf("ERROR: %i on %s line %d", errno, __FILE__, __LINE__);
|
||||
/* exit(errno); */
|
||||
assert(0);
|
||||
}
|
||||
if( close(blobfd1) || ((blobfd1 = open(BLOB1_FILE, O_RDWR, 0)) == -1) ) { /* need to reopen with read perms */
|
||||
printf("ERROR: %i on %s line %d", errno, __FILE__, __LINE__);
|
||||
/* exit(errno); */
|
||||
assert(0);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/** @todo: Assumes no blobs are in memory. Will break if called in the presence of dirty blobs. */
|
||||
void closeBlobStore() {
|
||||
assert(!close(blobfd0));
|
||||
assert(!close(blobfd1));
|
||||
blobfd0 = -1;
|
||||
blobfd1 = -1;
|
||||
}
|
||||
|
||||
|
||||
recordid allocBlob(int xid, lsn_t lsn, size_t blobSize) {
|
||||
|
||||
long fileSize = lseek(blobfd1, 0, SEEK_END);
|
||||
blob_record_t blob_rec;
|
||||
Page p;
|
||||
/* Allocate space for the blob entry. */
|
||||
|
||||
/* First in buffer manager. */
|
||||
recordid rid = ralloc(xid, sizeof(blob_record_t));
|
||||
|
||||
readRecord(xid, rid, &blob_rec);
|
||||
|
||||
/** Then in the blob file. @todo: BUG How can we get around doing a
|
||||
force here? If the user allocates space and we crash, could we
|
||||
double allocate space, since the file won't have grown. Could
|
||||
we write a log entry with the new size? Alternatively, is
|
||||
forcing the files before writing a commit to log enough?*/
|
||||
|
||||
lseek(blobfd0, fileSize + blobSize - 1, SEEK_SET);
|
||||
write(blobfd0, 0, 1);
|
||||
lseek(blobfd1, fileSize + blobSize - 1, SEEK_SET);
|
||||
write(blobfd1, 0, 1);
|
||||
|
||||
/** Finally, fix up the fields in the record that points to the blob. */
|
||||
|
||||
blob_rec.fd = 0;
|
||||
blob_rec.size = blobSize;
|
||||
blob_rec.offset = fileSize;
|
||||
|
||||
p = loadPage(rid.page);
|
||||
|
||||
setSlotType(p, rid.slot, BLOB_SLOT);
|
||||
rid.size = BLOB_SLOT;
|
||||
/* writeRecord needs to know to 'do the right thing' here, since
|
||||
we've changed the size it has recorded for this record. */
|
||||
writeRecord (xid, rid, lsn, &blob_rec);
|
||||
|
||||
return rid;
|
||||
|
||||
|
||||
}
|
||||
|
||||
void readBlob(recordid rid, void * buf) {
|
||||
|
||||
|
||||
|
||||
}
|
||||
52
src/lladd/blobManager.h
Normal file
52
src/lladd/blobManager.h
Normal file
|
|
@ -0,0 +1,52 @@
|
|||
#ifndef __BLOB_MANAGER_H
|
||||
#define __BLOB_MANAGER_H
|
||||
|
||||
#include <lladd/common.h>
|
||||
#include <lladd/page.h>
|
||||
BEGIN_C_DECLS
|
||||
|
||||
/** blobManager - Provides blob handling @todo Set range??
|
||||
Plan for modularity: Exactly one blob manager per storeFile.
|
||||
Blob manager interacts with page manger via page manager's
|
||||
public api.
|
||||
*/
|
||||
|
||||
|
||||
/**
|
||||
If blob is resident, return a pointer to it. Otherwise, check if
|
||||
it's dirty (it could have been stolen), an retrieve it from the
|
||||
appropriate blob file.
|
||||
*/
|
||||
void readBlob(recordid rid, void * buf);
|
||||
|
||||
/**
|
||||
If you write to a blob, call this function to mark it dirty.
|
||||
*/
|
||||
void writeBlob(recordid rid, lsn_t lsn, void * buf);
|
||||
|
||||
/**
|
||||
Atomically (with respect to recovery) make the dirty version of the
|
||||
blob the primary copy and mark it not-dirty.
|
||||
*/
|
||||
|
||||
void commitBlobs(int xid);
|
||||
|
||||
/**
|
||||
Revert the blob to the last clean version.
|
||||
*/
|
||||
|
||||
void abortBlobs(int xid);
|
||||
|
||||
typedef struct {
|
||||
unsigned offset;
|
||||
unsigned long size;
|
||||
unsigned fd : 1;
|
||||
} blob_record_t;
|
||||
|
||||
recordid allocBlob(int xid, lsn_t lsn, size_t blobSize);
|
||||
void openBlobStore();
|
||||
void closeBlobStore();
|
||||
|
||||
END_C_DECLS
|
||||
|
||||
#endif
|
||||
Loading…
Reference in a new issue