database/postgres
1
0
Fork 0
mirror of https://github.com/postgres/postgres.git synced 2025-07-26 01:22:12 +03:00
Code Activity

bootstrap: pure parser and reentrant scanner

Browse Source 
Use the flex %option reentrant and the bison option %pure-parser to
make the generated scanner and parser pure, reentrant, and
thread-safe.

Make the generated scanner use palloc() etc. instead of malloc() etc.

For the bootstrap scanner and parser, reentrancy and memory management
aren't that important, but we make this change here anyway so that all
the scanners and parsers in the backend use a similar set of options
and APIs.

Reviewed-by: Heikki Linnakangas <hlinnaka@iki.fi>
Reviewed-by: Andreas Karlsson <andreas@proxel.se>
Discussion: https://www.postgresql.org/message-id/flat/eb6faeac-2a8a-4b69-9189-c33c520e5b7b@eisentraut.org
This commit is contained in:
Peter Eisentraut
2024-12-19 15:37:44 +01:00
parent 399d0f1e11
commit 3e4bacb171
4 changed files with 80 additions and 38 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
src/backend/bootstrap/bootstrap.c
View File

@ -202,6 +202,7 @@ BootstrapModeMain(int argc, char *argv[], bool check_only)
int flag;
char *userDoption = NULL;
uint32 bootstrap_data_checksum_version = 0; /* No checksum */
yyscan_t scanner;
Assert(!IsUnderPostmaster);
@ -378,11 +379,14 @@ BootstrapModeMain(int argc, char *argv[], bool check_only)
Nulls[i] = false;
}
if (boot_yylex_init(&scanner) != 0)
elog(ERROR, "yylex_init() failed: %m");
/*
* Process bootstrap input.
*/
StartTransactionCommand();
boot_yyparse();
boot_yyparse(scanner);
CommitTransactionCommand();
/*