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ledger/binary.cc
John Wiegley ea27d1b45a Moved around and renamed a very large amount of code in order to rationalize 
the way that value expressions extract information from journal objects.
2008-07-29 20:10:03 -04:00

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/*
* Copyright (c) 2003-2008, John Wiegley. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* - Neither the name of New Artisans LLC nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "binary.h"
#include "journal.h"
#include "session.h"
namespace ledger {
static unsigned long binary_magic_number = 0xFFEED765;
#ifdef DEBUG_ENABLED
static unsigned long format_version = 0x00020701;
#else
static unsigned long format_version = 0x00020700;
#endif
static account_t ** accounts;
static account_t ** accounts_next;
static unsigned int account_index;
static commodity_t::base_t ** base_commodities;
static commodity_t::base_t ** base_commodities_next;
static unsigned int base_commodity_index;
static commodity_t ** commodities;
static commodity_t ** commodities_next;
static unsigned int commodity_index;
extern char * bigints;
extern char * bigints_next;
extern unsigned int bigints_index;
extern unsigned int bigints_count;
bool journal_t::binary_parser_t::test(std::istream& in) const
{
if (binary::read_number_nocheck<unsigned long>(in) == binary_magic_number &&
binary::read_number_nocheck<unsigned long>(in) == format_version)
return true;
in.clear();
in.seekg(0, std::ios::beg);
return false;
}
namespace binary {
unsigned int read_journal(std::istream& in,
const path& file,
journal_t& journal,
account_t * master);
}
unsigned int journal_t::binary_parser_t::parse(std::istream& in,
session_t& session,
journal_t& journal,
account_t * master,
const path * original_file)
{
return journal.read(in, original_file ? *original_file : "", master);
}
namespace binary {
void read_bool(std::istream& in, bool& num)
{
read_guard(in, 0x2005);
unsigned char val;
in.read(reinterpret_cast<char *>(&val), sizeof(val));
num = val == 1;
read_guard(in, 0x2006);
}
void read_bool(const char *& data, bool& num)
{
read_guard(data, 0x2005);
const unsigned char val = *reinterpret_cast<const unsigned char *>(data);
data += sizeof(unsigned char);
num = val == 1;
read_guard(data, 0x2006);
}
void read_string(std::istream& in, string& str)
{
read_guard(in, 0x3001);
unsigned char len;
read_number_nocheck(in, len);
if (len == 0xff) {
unsigned short slen;
read_number_nocheck(in, slen);
char * buf = new char[slen + 1];
in.read(buf, slen);
buf[slen] = '\0';
str = buf;
checked_array_delete(buf);
}
else if (len) {
char buf[256];
in.read(buf, len);
buf[len] = '\0';
str = buf;
} else {
str = "";
}
read_guard(in, 0x3002);
}
void read_string(const char *& data, string& str)
{
read_guard(data, 0x3001);
unsigned char len;
read_number_nocheck(data, len);
if (len == 0xff) {
unsigned short slen;
read_number_nocheck(data, slen);
str = string(data, slen);
data += slen;
}
else if (len) {
str = string(data, len);
data += len;
}
else {
str = "";
}
read_guard(data, 0x3002);
}
void read_string(const char *& data, string * str)
{
read_guard(data, 0x3001);
unsigned char len;
read_number_nocheck(data, len);
if (len == 0xff) {
unsigned short slen;
read_number_nocheck(data, slen);
new(str) string(data, slen);
data += slen;
}
else if (len) {
new(str) string(data, len);
data += len;
}
else {
new(str) string("");
}
read_guard(data, 0x3002);
}
void read_string(std::istream& in, optional<string>& str)
{
if (read_bool(in)) {
string temp;
read_string(in, temp);
str = temp;
} else {
str = none;
}
}
void read_string(const char *& data, optional<string>& str)
{
if (read_bool(data)) {
string temp;
read_string(data, temp);
str = temp;
} else {
str = none;
}
}
void write_bool(std::ostream& out, bool num)
{
write_guard(out, 0x2005);
unsigned char val = num ? 1 : 0;
out.write(reinterpret_cast<char *>(&val), sizeof(val));
write_guard(out, 0x2006);
}
void write_string(std::ostream& out, const string& str)
{
write_guard(out, 0x3001);
unsigned long len = str.length();
if (len > 255) {
assert(len < 65536);
write_number_nocheck<unsigned char>(out, 0xff);
write_number_nocheck<unsigned short>(out, len);
} else {
write_number_nocheck<unsigned char>(out, len);
}
if (len)
out.write(str.c_str(), len);
write_guard(out, 0x3002);
}
void write_string(std::ostream& out, const optional<string>& str)
{
if (str) {
write_bool(out, true);
write_string(out, *str);
} else {
write_bool(out, false);
}
}
inline void read_amount(const char *& data, amount_t& amt)
{
commodity_t::ident_t ident;
read_long(data, ident);
if (ident == 0xffffffff)
amt.commodity_ = NULL;
else if (ident == 0)
amt.commodity_ = amount_t::current_pool->null_commodity;
else
amt.commodity_ = commodities[ident - 1];
amt.read(data);
}
inline void read_value(const char *& data, value_t& val)
{
switch (static_cast<value_t::type_t>(read_long<int>(data))) {
case value_t::BOOLEAN:
val.set_boolean(read_bool(data));
break;
case value_t::INTEGER:
val.set_long(read_number<unsigned long>(data));
break;
case value_t::DATETIME:
// jww (2008-04-22): I need to record and read a datetime_t directly
//val.set_datetime(read_long<unsigned long>(data));
break;
case value_t::AMOUNT: {
amount_t temp;
read_amount(data, temp);
val.set_amount(temp);
break;
}
//case value_t::BALANCE:
//case value_t::BALANCE_PAIR:
default:
assert(false);
break;
}
}
inline void read_mask(const char *& data, mask_t& mask)
{
bool exclude;
read_number(data, exclude);
string pattern;
read_string(data, pattern);
mask = mask_t(pattern);
mask.exclude = exclude;
}
inline void read_xact(const char *& data, xact_t * xact)
{
read_number(data, xact->_date);
read_number(data, xact->_date_eff);
xact->account = accounts[read_long<account_t::ident_t>(data) - 1];
unsigned char flag = read_number<unsigned char>(data);
if (flag == 0) {
read_amount(data, xact->amount);
}
else if (flag == 1) {
read_amount(data, xact->amount);
string str;
read_string(data, str);
xact->amount_expr->set_text(str);
}
else {
xact->amount_expr->read(data);
}
if (read_bool(data)) {
xact->cost = amount_t();
read_amount(data, *xact->cost);
xact->cost_expr = expr_t();
xact->cost_expr->read(data);
} else {
xact->cost = none;
}
read_number(data, xact->state);
xact->set_flags(read_number<xact_t::flags_t>(data));
xact->add_flags(XACT_BULK_ALLOC);
read_string(data, xact->note);
xact->beg_pos = read_long<unsigned long>(data);
read_long(data, xact->beg_line);
xact->end_pos = read_long<unsigned long>(data);
read_long(data, xact->end_line);
xact->data = NULL;
#if 0
if (xact->amount_expr)
expr_t::compute_amount(xact->amount_expr.get(), xact->amount, xact);
#endif
}
inline void read_entry_base(const char *& data, entry_base_t * entry,
xact_t *& xact_pool, bool& finalize)
{
read_long(data, entry->src_idx);
entry->beg_pos = read_long<unsigned long>(data);
read_long(data, entry->beg_line);
entry->end_pos = read_long<unsigned long>(data);
read_long(data, entry->end_line);
bool ignore_calculated = read_bool(data);
for (unsigned long i = 0, count = read_long<unsigned long>(data);
i < count;
i++) {
new(xact_pool) xact_t;
read_xact(data, xact_pool);
if (ignore_calculated && xact_pool->has_flags(XACT_CALCULATED))
finalize = true;
entry->add_xact(xact_pool++);
}
}
inline void read_entry(const char *& data, entry_t * entry,
xact_t *& xact_pool, bool& finalize)
{
read_entry_base(data, entry, xact_pool, finalize);
read_number(data, entry->_date);
read_number(data, entry->_date_eff);
read_string(data, entry->code);
read_string(data, entry->payee);
}
inline void read_auto_entry(const char *& data, auto_entry_t * entry,
xact_t *& xact_pool)
{
bool ignore;
read_entry_base(data, entry, xact_pool, ignore);
expr_t expr;
expr.read(data);
entry->predicate = item_predicate<xact_t>(expr);
}
inline void read_period_entry(const char *& data, period_entry_t * entry,
xact_t *& xact_pool, bool& finalize)
{
read_entry_base(data, entry, xact_pool, finalize);
read_string(data, &entry->period_string);
std::istringstream stream(entry->period_string);
entry->period.parse(stream);
}
inline commodity_t::base_t * read_commodity_base(const char *& data)
{
string str;
read_string(data, str);
std::auto_ptr<commodity_t::base_t> commodity(new commodity_t::base_t(str));
read_string(data, str);
if (! str.empty())
commodity->name = str;
read_string(data, str);
if (! str.empty())
commodity->note = str;
read_number(data, commodity->precision);
unsigned long flags;
read_number(data, flags);
commodity->set_flags(flags);
return *base_commodities_next++ = commodity.release();
}
inline void read_commodity_base_extra(const char *& data,
commodity_t::ident_t ident)
{
commodity_t::base_t * commodity = base_commodities[ident];
bool read_history = false;
for (unsigned long i = 0, count = read_long<unsigned long>(data);
i < count;
i++) {
datetime_t when;
read_number(data, when);
amount_t amt;
read_amount(data, amt);
// Upon insertion, amt will be copied, which will cause the amount
// to be duplicated (and thus not lost when the journal's
// item_pool is deleted).
if (! commodity->history)
commodity->history = commodity_t::history_t();
commodity->history->prices.insert(commodity_t::base_t::history_pair(when, amt));
read_history = true;
}
if (read_history)
read_number(data, commodity->history->last_lookup);
if (read_bool(data)) {
amount_t amt;
read_amount(data, amt);
commodity->smaller = amount_t(amt);
}
if (read_bool(data)) {
amount_t amt;
read_amount(data, amt);
commodity->larger = amount_t(amt);
}
}
inline commodity_t * read_commodity(const char *& data)
{
commodity_t::base_t * base =
base_commodities[read_long<commodity_t::ident_t>(data) - 1];
commodity_t * commodity =
new commodity_t(amount_t::current_pool,
shared_ptr<commodity_t::base_t>(base));
*commodities_next++ = commodity;
string str;
read_string(data, str);
if (! str.empty())
commodity->qualified_symbol = str;
commodity->annotated = false;
return commodity;
}
inline commodity_t * read_commodity_annotated(const char *& data)
{
commodity_t * commodity =
commodities[read_long<commodity_t::ident_t>(data) - 1];
annotation_t details;
string str;
read_string(data, str);
// This read-and-then-assign causes a new amount to be allocated which does
// not live within the bulk allocation pool, since that pool will be deleted
// *before* the commodities are destroyed.
amount_t amt;
read_amount(data, amt);
details.price = amt;
#if 0
// jww (2008-04-22): These are optional members!
read_number(data, details.date);
read_string(data, details.tag);
#endif
annotated_commodity_t * ann_comm =
new annotated_commodity_t(commodity, details);
*commodities_next++ = ann_comm;
if (! str.empty())
ann_comm->qualified_symbol = str;
return ann_comm;
}
inline
account_t * read_account(const char *& data, journal_t& journal,
account_t * master = NULL)
{
account_t * acct = new account_t(NULL);
*accounts_next++ = acct;
account_t::ident_t id;
read_long(data, id); // parent id
if (id == 0xffffffff)
acct->parent = NULL;
else
acct->parent = accounts[id - 1];
read_string(data, acct->name);
read_string(data, acct->note);
read_number(data, acct->depth);
// If all of the subaccounts will be added to a different master
// account, throw away what we've learned about the recorded
// journal's own master account.
if (master && acct != master) {
checked_delete(acct);
acct = master;
}
for (account_t::ident_t i = 0,
count = read_long<account_t::ident_t>(data);
i < count;
i++) {
account_t * child = read_account(data, journal);
child->parent = acct;
assert(acct != child);
acct->add_account(child);
}
return acct;
}
void write_amount(std::ostream& out, const amount_t& amt)
{
if (amt.commodity_)
write_long(out, amt.commodity_->ident);
else
write_long<commodity_t::ident_t>(out, 0xffffffff);
amt.write(out);
}
void write_value(std::ostream& out, const value_t& val)
{
write_long(out, (int)val.type());
switch (val.type()) {
case value_t::BOOLEAN:
write_bool(out, val.as_boolean());
break;
case value_t::INTEGER:
write_long(out, val.as_long());
break;
case value_t::DATETIME:
write_number(out,val.as_datetime());
break;
case value_t::AMOUNT:
write_amount(out, val.as_amount());
break;
//case value_t::BALANCE:
//case value_t::BALANCE_PAIR:
default:
throw new error("Cannot write a balance to the binary cache");
}
}
void write_mask(std::ostream& out, mask_t& mask)
{
write_number(out, mask.exclude);
write_string(out, mask.expr.str());
}
void write_xact(std::ostream& out, xact_t * xact,
bool ignore_calculated)
{
write_number(out, xact->_date);
write_number(out, xact->_date_eff);
write_long(out, xact->account->ident);
if (ignore_calculated && xact->has_flags(XACT_CALCULATED)) {
write_number<unsigned char>(out, 0);
write_amount(out, amount_t());
}
else if (xact->amount_expr) {
write_number<unsigned char>(out, 2);
xact->amount_expr->write(out);
}
else if (! xact->amount_expr->text().empty()) {
write_number<unsigned char>(out, 1);
write_amount(out, xact->amount);
write_string(out, xact->amount_expr->text());
}
else {
write_number<unsigned char>(out, 0);
write_amount(out, xact->amount);
}
if (xact->cost &&
(! (ignore_calculated && xact->has_flags(XACT_CALCULATED)))) {
write_bool(out, true);
write_amount(out, *xact->cost);
xact->cost_expr->write(out);
} else {
write_bool(out, false);
}
write_number(out, xact->state);
write_number(out, xact->flags());
write_string(out, xact->note);
write_long(out, xact->beg_pos);
write_long(out, xact->beg_line);
write_long(out, xact->end_pos);
write_long(out, xact->end_line);
}
void write_entry_base(std::ostream& out, entry_base_t * entry)
{
write_long(out, entry->src_idx);
write_long(out, entry->beg_pos);
write_long(out, entry->beg_line);
write_long(out, entry->end_pos);
write_long(out, entry->end_line);
bool ignore_calculated = false;
for (xacts_list::const_iterator i = entry->xacts.begin();
i != entry->xacts.end();
i++)
if ((*i)->amount_expr) {
ignore_calculated = true;
break;
}
write_bool(out, ignore_calculated);
write_long(out, entry->xacts.size());
for (xacts_list::const_iterator i = entry->xacts.begin();
i != entry->xacts.end();
i++)
write_xact(out, *i, ignore_calculated);
}
void write_entry(std::ostream& out, entry_t * entry)
{
write_entry_base(out, entry);
write_number(out, entry->_date);
write_number(out, entry->_date_eff);
write_string(out, entry->code);
write_string(out, entry->payee);
}
void write_auto_entry(std::ostream& out, auto_entry_t * entry)
{
write_entry_base(out, entry);
entry->predicate.predicate.write(out);
}
void write_period_entry(std::ostream& out, period_entry_t * entry)
{
write_entry_base(out, entry);
write_string(out, entry->period_string);
}
void write_commodity_base(std::ostream& out, commodity_t::base_t * commodity)
{
// jww (2008-04-22): Not using this anymore?
//commodity->ident = ++base_commodity_index;
write_string(out, commodity->symbol);
// jww (2008-04-22): What to do with optional members?
write_string(out, *commodity->name);
write_string(out, *commodity->note);
write_number(out, commodity->precision);
write_number(out, commodity->flags());
}
void write_commodity_base_extra(std::ostream& out,
commodity_t::base_t * commodity)
{
#if 0
// jww (2008-04-22): What did bogus_time used to do?
if (commodity->history && commodity->history->bogus_time)
commodity->remove_price(commodity->history->bogus_time);
#endif
if (! commodity->history) {
write_long<unsigned long>(out, 0);
} else {
write_long<unsigned long>(out, commodity->history->prices.size());
for (commodity_t::history_map::const_iterator
i = commodity->history->prices.begin();
i != commodity->history->prices.end();
i++) {
write_number(out, (*i).first);
write_amount(out, (*i).second);
}
write_number(out, commodity->history->last_lookup);
}
if (commodity->smaller) {
write_bool(out, true);
write_amount(out, *commodity->smaller);
} else {
write_bool(out, false);
}
if (commodity->larger) {
write_bool(out, true);
write_amount(out, *commodity->larger);
} else {
write_bool(out, false);
}
}
void write_commodity(std::ostream& out, commodity_t * commodity)
{
commodity->ident = ++commodity_index;
// jww (2008-04-22): Is this used anymore?
//write_long(out, commodity->base->ident);
// jww (2008-04-22): Optional!
write_string(out, *commodity->qualified_symbol);
}
void write_commodity_annotated(std::ostream& out,
commodity_t * commodity)
{
commodity->ident = ++commodity_index;
// jww (2008-04-22): No longer needed?
//write_long(out, commodity->base->ident);
// jww (2008-04-22): Optional!
write_string(out, *commodity->qualified_symbol);
annotated_commodity_t * ann_comm =
static_cast<annotated_commodity_t *>(commodity);
// jww (2008-04-22): No longer needed?
//write_long(out, ann_comm->base->ident);
// jww (2008-04-22): Make a write_annotation_details function; and optional!
write_amount(out, *ann_comm->details.price);
write_number(out, *ann_comm->details.date);
write_string(out, *ann_comm->details.tag);
}
static inline account_t::ident_t count_accounts(account_t * account)
{
account_t::ident_t count = 1;
for (accounts_map::iterator i = account->accounts.begin();
i != account->accounts.end();
i++)
count += count_accounts((*i).second);
return count;
}
void write_account(std::ostream& out, account_t * account)
{
account->ident = ++account_index;
if (account->parent)
write_long(out, account->parent->ident);
else
write_long<account_t::ident_t>(out, 0xffffffff);
write_string(out, account->name);
write_string(out, account->note);
write_number(out, account->depth);
write_long<account_t::ident_t>(out, account->accounts.size());
for (accounts_map::iterator i = account->accounts.begin();
i != account->accounts.end();
i++)
write_account(out, (*i).second);
}
} // namespace binary
unsigned int journal_t::read(std::istream& in,
const path& file,
account_t * master)
{
using namespace binary;
account_index =
base_commodity_index =
commodity_index = 0;
// Read in the files that participated in this journal, so that they
// can be checked for changes on reading.
if (! file.empty()) {
for (unsigned short i = 0,
count = read_number<unsigned short>(in);
i < count;
i++) {
path pathname = read_string(in);
std::time_t old_mtime;
read_number(in, old_mtime);
struct stat info;
// jww (2008-04-22): can this be done differently now?
stat(pathname.string().c_str(), &info);
if (std::difftime(info.st_mtime, old_mtime) > 0)
return 0;
sources.push_back(pathname);
}
// Make sure that the cache uses the same price database,
// otherwise it means that LEDGER_PRICE_DB has been changed, and
// we should ignore this cache file.
if (read_bool(in)) {
string pathname;
read_string(in, pathname);
if (! price_db ||
price_db->string() != std::string(pathname))
return 0;
}
}
// Read all of the data in at once, so that we're just dealing with
// a big data buffer.
unsigned long data_size = read_number<unsigned long>(in);
char * data_pool = new char[data_size];
in.read(data_pool, data_size);
// Read in the accounts
const char * data = data_pool;
account_t::ident_t a_count = read_long<account_t::ident_t>(data);
accounts = accounts_next = new account_t *[a_count];
// jww (2008-07-29): Does this still apply?
assert(owner->master);
checked_delete(owner->master);
owner->master = read_account(data, *this, master);
if (read_bool(data))
basket = accounts[read_long<account_t::ident_t>(data) - 1];
// Allocate the memory needed for the entries and xacts in
// one large block, which is then chopped up and custom constructed
// as necessary.
unsigned long count = read_long<unsigned long>(data);
unsigned long auto_count = read_long<unsigned long>(data);
unsigned long period_count = read_long<unsigned long>(data);
unsigned long xact_count = read_number<unsigned long>(data);
unsigned long bigint_count = read_number<unsigned long>(data);
std::size_t pool_size = (sizeof(entry_t) * count +
sizeof(xact_t) * xact_count +
amount_t::sizeof_bigint_t() * bigint_count);
char * item_pool = new char[pool_size];
item_pool = item_pool;
item_pool_end = item_pool + pool_size;
entry_t * entry_pool = (entry_t *) item_pool;
xact_t * xact_pool = (xact_t *) (item_pool +
sizeof(entry_t) * count);
bigints_index = 0;
bigints = bigints_next = (item_pool + sizeof(entry_t) * count +
sizeof(xact_t) * xact_count);
// Read in the base commodities and then derived commodities
commodity_t::ident_t bc_count = read_long<commodity_t::ident_t>(data);
base_commodities = base_commodities_next = new commodity_t::base_t *[bc_count];
for (commodity_t::ident_t i = 0; i < bc_count; i++) {
#if 0
commodity_t::base_t * base = read_commodity_base(data);
// jww (2008-04-22): How does the pool get created here?
amount_t::current_pool->commodities.push_back(commodity);
// jww (2008-04-22): What about this logic here?
if (! result.second) {
base_commodities_map::iterator c =
commodity_t::base_t::commodities.find(commodity->symbol);
// It's possible the user might have used a commodity in a value
// expression passed to an option, we'll just override the
// flags, but keep the commodity pointer intact.
if (c == commodity_t::base_t::commodities.end())
throw new error(string("Failed to read base commodity from cache: ") +
commodity->symbol);
(*c).second->name = commodity->name;
(*c).second->note = commodity->note;
(*c).second->precision = commodity->precision;
(*c).second->flags = commodity->flags;
if ((*c).second->smaller)
checked_delete((*c).second->smaller);
(*c).second->smaller = commodity->smaller;
if ((*c).second->larger)
checked_delete((*c).second->larger);
(*c).second->larger = commodity->larger;
*(base_commodities_next - 1) = (*c).second;
checked_delete(commodity);
}
#endif
}
commodity_t::ident_t c_count = read_long<commodity_t::ident_t>(data);
commodities = commodities_next = new commodity_t *[c_count];
for (commodity_t::ident_t i = 0; i < c_count; i++) {
commodity_t * commodity;
string mapping_key;
if (! read_bool(data)) {
commodity = read_commodity(data);
mapping_key = commodity->base->symbol;
} else {
read_string(data, mapping_key);
commodity = read_commodity_annotated(data);
}
// jww (2008-04-22): What do I do with mapping_key here?
amount_t::current_pool->commodities.push_back(commodity);
#if 0
// jww (2008-04-22): What about the error case?
if (! result.second) {
commodities_map::iterator c =
commodity_t::commodities.find(mapping_key);
if (c == commodity_t::commodities.end())
throw new error(string("Failed to read commodity from cache: ") +
commodity->symbol());
*(commodities_next - 1) = (*c).second;
checked_delete(commodity);
}
#endif
}
for (commodity_t::ident_t i = 0; i < bc_count; i++)
read_commodity_base_extra(data, i);
commodity_t::ident_t ident;
read_long(data, ident);
if (ident == 0xffffffff || ident == 0)
amount_t::current_pool->default_commodity = NULL;
else
amount_t::current_pool->default_commodity = commodities[ident - 1];
// Read in the entries and xacts
for (unsigned long i = 0; i < count; i++) {
new(entry_pool) entry_t;
bool finalize = false;
read_entry(data, entry_pool, xact_pool, finalize);
entry_pool->journal = this;
if (finalize && ! entry_pool->finalize())
continue;
entries.push_back(entry_pool++);
}
for (unsigned long i = 0; i < auto_count; i++) {
auto_entry_t * auto_entry = new auto_entry_t;
read_auto_entry(data, auto_entry, xact_pool);
auto_entry->journal = this;
auto_entries.push_back(auto_entry);
}
for (unsigned long i = 0; i < period_count; i++) {
period_entry_t * period_entry = new period_entry_t;
bool finalize = false;
read_period_entry(data, period_entry, xact_pool, finalize);
period_entry->journal = this;
if (finalize && ! period_entry->finalize())
continue;
period_entries.push_back(period_entry);
}
// Clean up and return the number of entries read
checked_array_delete(accounts);
checked_array_delete(commodities);
checked_array_delete(data_pool);
VERIFY(valid());
return count;
}
void journal_t::write(std::ostream& out)
{
using namespace binary;
account_index =
base_commodity_index =
commodity_index = 0;
write_number_nocheck(out, binary_magic_number);
write_number_nocheck(out, format_version);
// Write out the files that participated in this journal, so that
// they can be checked for changes on reading.
if (sources.empty()) {
write_number<unsigned short>(out, 0);
} else {
write_number<unsigned short>(out, sources.size());
for (paths_list::const_iterator i = sources.begin();
i != sources.end();
i++) {
write_string(out, (*i).string());
struct stat info;
stat((*i).string().c_str(), &info);
write_number(out, std::time_t(info.st_mtime));
}
// Write out the price database that relates to this data file, so
// that if it ever changes the cache can be invalidated.
if (price_db) {
write_bool(out, true);
write_string(out, price_db->string());
} else {
write_bool(out, false);
}
}
ostream_pos_type data_val = out.tellp();
write_number<unsigned long>(out, 0);
// Write out the accounts
write_long<account_t::ident_t>(out, count_accounts(master));
write_account(out, master);
if (basket) {
write_bool(out, true);
write_long(out, basket->ident);
} else {
write_bool(out, false);
}
// Write out the number of entries, xacts, and amounts
write_long<unsigned long>(out, entries.size());
write_long<unsigned long>(out, auto_entries.size());
write_long<unsigned long>(out, period_entries.size());
ostream_pos_type xacts_val = out.tellp();
write_number<unsigned long>(out, 0);
ostream_pos_type bigints_val = out.tellp();
write_number<unsigned long>(out, 0);
bigints_count = 0;
// Write out the commodities
// jww (2008-04-22): This whole section needs to be reworked
#if 0
write_long<commodity_t::ident_t>(out, amount_t::current_pool->commodities.size());
for (base_commodities_map::const_iterator i =
commodity_t::base_t::commodities.begin();
i != commodity_t::base_t::commodities.end();
i++)
write_commodity_base(out, (*i).second);
write_long<commodity_t::ident_t>
(out, commodity_t::commodities.size());
for (commodities_map::const_iterator i = commodity_t::commodities.begin();
i != commodity_t::commodities.end();
i++) {
if (! (*i).second->annotated) {
write_bool(out, false);
write_commodity(out, (*i).second);
}
}
for (commodities_map::const_iterator i = commodity_t::commodities.begin();
i != commodity_t::commodities.end();
i++) {
if ((*i).second->annotated) {
write_bool(out, true);
write_string(out, (*i).first); // the mapping key
write_commodity_annotated(out, (*i).second);
}
}
// Write out the history and smaller/larger convertible links after
// both the base and the main commodities have been written, since
// the amounts in both will refer to the mains.
for (base_commodities_map::const_iterator i =
commodity_t::base_t::commodities.begin();
i != commodity_t::base_t::commodities.end();
i++)
write_commodity_base_extra(out, (*i).second);
if (commodity_t::default_commodity)
write_long(out, commodity_t::default_commodity->ident);
else
write_long<commodity_t::ident_t>(out, 0xffffffff);
#endif
// Write out the entries and xacts
unsigned long xact_count = 0;
for (entries_list::const_iterator i = entries.begin();
i != entries.end();
i++) {
write_entry(out, *i);
xact_count += (*i)->xacts.size();
}
for (auto_entries_list::const_iterator i = auto_entries.begin();
i != auto_entries.end();
i++) {
write_auto_entry(out, *i);
xact_count += (*i)->xacts.size();
}
for (period_entries_list::const_iterator i = period_entries.begin();
i != period_entries.end();
i++) {
write_period_entry(out, *i);
xact_count += (*i)->xacts.size();
}
// Back-patch the count for amounts
unsigned long data_size = (((unsigned long) out.tellp()) -
((unsigned long) data_val) -
sizeof(unsigned long));
out.seekp(data_val);
write_number<unsigned long>(out, data_size);
out.seekp(xacts_val);
write_number<unsigned long>(out, xact_count);
out.seekp(bigints_val);
write_number<unsigned long>(out, bigints_count);
}
} // namespace ledger
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