evsql: src/dbfs/common.c@7804cd7b5cd5 (annotated)

28 e944453ca924 split off dbfs components into a separate dir, improve dirop docs, error handling, etc Tero Marttila <terom@fixme.fi> parents: diff changeset	1
e944453ca924 split off dbfs components into a separate dir, improve dirop docs, error handling, etc Tero Marttila <terom@fixme.fi> parents: diff changeset	2	#include <string.h>
e944453ca924 split off dbfs components into a separate dir, improve dirop docs, error handling, etc Tero Marttila <terom@fixme.fi> parents: diff changeset	3
29 5de62ca9a5aa reorganize evsql into a separate dir, rename dbfs slightly, and split dbfs_op out from dirop (in prep for fileop) Tero Marttila <terom@fixme.fi> parents: 28 diff changeset	4	#include "dbfs.h"
5de62ca9a5aa reorganize evsql into a separate dir, rename dbfs slightly, and split dbfs_op out from dirop (in prep for fileop) Tero Marttila <terom@fixme.fi> parents: 28 diff changeset	5	#include "../lib/log.h"
28 e944453ca924 split off dbfs components into a separate dir, improve dirop docs, error handling, etc Tero Marttila <terom@fixme.fi> parents: diff changeset	6
e944453ca924 split off dbfs components into a separate dir, improve dirop docs, error handling, etc Tero Marttila <terom@fixme.fi> parents: diff changeset	7	mode_t _dbfs_mode (const char *type) {
e944453ca924 split off dbfs components into a separate dir, improve dirop docs, error handling, etc Tero Marttila <terom@fixme.fi> parents: diff changeset	8	if (!strcmp(type, "DIR"))
e944453ca924 split off dbfs components into a separate dir, improve dirop docs, error handling, etc Tero Marttila <terom@fixme.fi> parents: diff changeset	9	return S_IFDIR;
e944453ca924 split off dbfs components into a separate dir, improve dirop docs, error handling, etc Tero Marttila <terom@fixme.fi> parents: diff changeset	10
e944453ca924 split off dbfs components into a separate dir, improve dirop docs, error handling, etc Tero Marttila <terom@fixme.fi> parents: diff changeset	11	if (!strcmp(type, "REG"))
e944453ca924 split off dbfs components into a separate dir, improve dirop docs, error handling, etc Tero Marttila <terom@fixme.fi> parents: diff changeset	12	return S_IFREG;
e944453ca924 split off dbfs components into a separate dir, improve dirop docs, error handling, etc Tero Marttila <terom@fixme.fi> parents: diff changeset	13
e944453ca924 split off dbfs components into a separate dir, improve dirop docs, error handling, etc Tero Marttila <terom@fixme.fi> parents: diff changeset	14	else {
e944453ca924 split off dbfs components into a separate dir, improve dirop docs, error handling, etc Tero Marttila <terom@fixme.fi> parents: diff changeset	15	WARNING("[dbfs] weird mode-type: %s", type);
e944453ca924 split off dbfs components into a separate dir, improve dirop docs, error handling, etc Tero Marttila <terom@fixme.fi> parents: diff changeset	16	return 0;
e944453ca924 split off dbfs components into a separate dir, improve dirop docs, error handling, etc Tero Marttila <terom@fixme.fi> parents: diff changeset	17	}
e944453ca924 split off dbfs components into a separate dir, improve dirop docs, error handling, etc Tero Marttila <terom@fixme.fi> parents: diff changeset	18	}
e944453ca924 split off dbfs components into a separate dir, improve dirop docs, error handling, etc Tero Marttila <terom@fixme.fi> parents: diff changeset	19
e944453ca924 split off dbfs components into a separate dir, improve dirop docs, error handling, etc Tero Marttila <terom@fixme.fi> parents: diff changeset	20	int _dbfs_check_res (const struct evsql_result_info *res, size_t rows, size_t cols) {
e944453ca924 split off dbfs components into a separate dir, improve dirop docs, error handling, etc Tero Marttila <terom@fixme.fi> parents: diff changeset	21	int err = 0;
e944453ca924 split off dbfs components into a separate dir, improve dirop docs, error handling, etc Tero Marttila <terom@fixme.fi> parents: diff changeset	22
e944453ca924 split off dbfs components into a separate dir, improve dirop docs, error handling, etc Tero Marttila <terom@fixme.fi> parents: diff changeset	23	// check if it failed
e944453ca924 split off dbfs components into a separate dir, improve dirop docs, error handling, etc Tero Marttila <terom@fixme.fi> parents: diff changeset	24	if (res->error)
e944453ca924 split off dbfs components into a separate dir, improve dirop docs, error handling, etc Tero Marttila <terom@fixme.fi> parents: diff changeset	25	NERROR(evsql_result_error(res));
e944453ca924 split off dbfs components into a separate dir, improve dirop docs, error handling, etc Tero Marttila <terom@fixme.fi> parents: diff changeset	26
e944453ca924 split off dbfs components into a separate dir, improve dirop docs, error handling, etc Tero Marttila <terom@fixme.fi> parents: diff changeset	27	// not found?
e944453ca924 split off dbfs components into a separate dir, improve dirop docs, error handling, etc Tero Marttila <terom@fixme.fi> parents: diff changeset	28	if (evsql_result_rows(res) == 0)
e944453ca924 split off dbfs components into a separate dir, improve dirop docs, error handling, etc Tero Marttila <terom@fixme.fi> parents: diff changeset	29	SERROR(err = 1);
e944453ca924 split off dbfs components into a separate dir, improve dirop docs, error handling, etc Tero Marttila <terom@fixme.fi> parents: diff changeset	30
e944453ca924 split off dbfs components into a separate dir, improve dirop docs, error handling, etc Tero Marttila <terom@fixme.fi> parents: diff changeset	31	// duplicate rows?
e944453ca924 split off dbfs components into a separate dir, improve dirop docs, error handling, etc Tero Marttila <terom@fixme.fi> parents: diff changeset	32	if (rows && evsql_result_rows(res) != rows)
e944453ca924 split off dbfs components into a separate dir, improve dirop docs, error handling, etc Tero Marttila <terom@fixme.fi> parents: diff changeset	33	ERROR("wrong number of rows returned");
e944453ca924 split off dbfs components into a separate dir, improve dirop docs, error handling, etc Tero Marttila <terom@fixme.fi> parents: diff changeset	34
e944453ca924 split off dbfs components into a separate dir, improve dirop docs, error handling, etc Tero Marttila <terom@fixme.fi> parents: diff changeset	35	// correct number of columns
e944453ca924 split off dbfs components into a separate dir, improve dirop docs, error handling, etc Tero Marttila <terom@fixme.fi> parents: diff changeset	36	if (evsql_result_cols(res) != cols)
e944453ca924 split off dbfs components into a separate dir, improve dirop docs, error handling, etc Tero Marttila <terom@fixme.fi> parents: diff changeset	37	ERROR("wrong number of columns: %zu", evsql_result_cols(res));
e944453ca924 split off dbfs components into a separate dir, improve dirop docs, error handling, etc Tero Marttila <terom@fixme.fi> parents: diff changeset	38
e944453ca924 split off dbfs components into a separate dir, improve dirop docs, error handling, etc Tero Marttila <terom@fixme.fi> parents: diff changeset	39	// good
e944453ca924 split off dbfs components into a separate dir, improve dirop docs, error handling, etc Tero Marttila <terom@fixme.fi> parents: diff changeset	40	return 0;
e944453ca924 split off dbfs components into a separate dir, improve dirop docs, error handling, etc Tero Marttila <terom@fixme.fi> parents: diff changeset	41
e944453ca924 split off dbfs components into a separate dir, improve dirop docs, error handling, etc Tero Marttila <terom@fixme.fi> parents: diff changeset	42	error:
e944453ca924 split off dbfs components into a separate dir, improve dirop docs, error handling, etc Tero Marttila <terom@fixme.fi> parents: diff changeset	43	if (!err)
e944453ca924 split off dbfs components into a separate dir, improve dirop docs, error handling, etc Tero Marttila <terom@fixme.fi> parents: diff changeset	44	err = -1;
e944453ca924 split off dbfs components into a separate dir, improve dirop docs, error handling, etc Tero Marttila <terom@fixme.fi> parents: diff changeset	45
e944453ca924 split off dbfs components into a separate dir, improve dirop docs, error handling, etc Tero Marttila <terom@fixme.fi> parents: diff changeset	46	return err;
e944453ca924 split off dbfs components into a separate dir, improve dirop docs, error handling, etc Tero Marttila <terom@fixme.fi> parents: diff changeset	47	}
e944453ca924 split off dbfs components into a separate dir, improve dirop docs, error handling, etc Tero Marttila <terom@fixme.fi> parents: diff changeset	48
e944453ca924 split off dbfs components into a separate dir, improve dirop docs, error handling, etc Tero Marttila <terom@fixme.fi> parents: diff changeset	49	int _dbfs_stat_info (struct stat st, const struct evsql_result_info res, size_t row, size_t col_offset) {
e944453ca924 split off dbfs components into a separate dir, improve dirop docs, error handling, etc Tero Marttila <terom@fixme.fi> parents: diff changeset	50	int err = 0;
e944453ca924 split off dbfs components into a separate dir, improve dirop docs, error handling, etc Tero Marttila <terom@fixme.fi> parents: diff changeset	51
e944453ca924 split off dbfs components into a separate dir, improve dirop docs, error handling, etc Tero Marttila <terom@fixme.fi> parents: diff changeset	52	uint16_t mode;
30 d8fabd347a8e working open+read+flush+release Tero Marttila <terom@fixme.fi> parents: 29 diff changeset	53	uint32_t size = 0; // NULL for non-REG inodes
31 7804cd7b5cd5 write+setattr Tero Marttila <terom@fixme.fi> parents: 30 diff changeset	54	uint64_t nlink = 0; // will be NULL for non-GROUP BY queries
28 e944453ca924 split off dbfs components into a separate dir, improve dirop docs, error handling, etc Tero Marttila <terom@fixme.fi> parents: diff changeset	55	const char *type;
e944453ca924 split off dbfs components into a separate dir, improve dirop docs, error handling, etc Tero Marttila <terom@fixme.fi> parents: diff changeset	56
e944453ca924 split off dbfs components into a separate dir, improve dirop docs, error handling, etc Tero Marttila <terom@fixme.fi> parents: diff changeset	57	// extract the data
31 7804cd7b5cd5 write+setattr Tero Marttila <terom@fixme.fi> parents: 30 diff changeset	58	if ((0
28 e944453ca924 split off dbfs components into a separate dir, improve dirop docs, error handling, etc Tero Marttila <terom@fixme.fi> parents: diff changeset	59	\|\| evsql_result_string(res, row, col_offset + 0, &type, 0 ) // inodes.type
e944453ca924 split off dbfs components into a separate dir, improve dirop docs, error handling, etc Tero Marttila <terom@fixme.fi> parents: diff changeset	60	\|\| evsql_result_uint16(res, row, col_offset + 1, &mode, 0 ) // inodes.mode
30 d8fabd347a8e working open+read+flush+release Tero Marttila <terom@fixme.fi> parents: 29 diff changeset	61	\|\| evsql_result_uint32(res, row, col_offset + 2, &size, 1 ) // size
31 7804cd7b5cd5 write+setattr Tero Marttila <terom@fixme.fi> parents: 30 diff changeset	62	\|\| evsql_result_uint64(res, row, col_offset + 3, &nlink, 1 ) // count(*)
7804cd7b5cd5 write+setattr Tero Marttila <terom@fixme.fi> parents: 30 diff changeset	63	) && (err = EIO))
7804cd7b5cd5 write+setattr Tero Marttila <terom@fixme.fi> parents: 30 diff changeset	64	ERROR("invalid db data");
28 e944453ca924 split off dbfs components into a separate dir, improve dirop docs, error handling, etc Tero Marttila <terom@fixme.fi> parents: diff changeset	65
e944453ca924 split off dbfs components into a separate dir, improve dirop docs, error handling, etc Tero Marttila <terom@fixme.fi> parents: diff changeset	66	INFO("\tst_mode=S_IF%s \| %ho, st_nlink=%llu, st_size=%llu", type, mode, (long long unsigned int) nlink, (long long unsigned int) size);
e944453ca924 split off dbfs components into a separate dir, improve dirop docs, error handling, etc Tero Marttila <terom@fixme.fi> parents: diff changeset	67
e944453ca924 split off dbfs components into a separate dir, improve dirop docs, error handling, etc Tero Marttila <terom@fixme.fi> parents: diff changeset	68	// convert and store
e944453ca924 split off dbfs components into a separate dir, improve dirop docs, error handling, etc Tero Marttila <terom@fixme.fi> parents: diff changeset	69	st->st_mode = _dbfs_mode(type) \| mode;
e944453ca924 split off dbfs components into a separate dir, improve dirop docs, error handling, etc Tero Marttila <terom@fixme.fi> parents: diff changeset	70	st->st_nlink = nlink;
e944453ca924 split off dbfs components into a separate dir, improve dirop docs, error handling, etc Tero Marttila <terom@fixme.fi> parents: diff changeset	71	st->st_size = size;
e944453ca924 split off dbfs components into a separate dir, improve dirop docs, error handling, etc Tero Marttila <terom@fixme.fi> parents: diff changeset	72
e944453ca924 split off dbfs components into a separate dir, improve dirop docs, error handling, etc Tero Marttila <terom@fixme.fi> parents: diff changeset	73	// good
e944453ca924 split off dbfs components into a separate dir, improve dirop docs, error handling, etc Tero Marttila <terom@fixme.fi> parents: diff changeset	74	return 0;
e944453ca924 split off dbfs components into a separate dir, improve dirop docs, error handling, etc Tero Marttila <terom@fixme.fi> parents: diff changeset	75
e944453ca924 split off dbfs components into a separate dir, improve dirop docs, error handling, etc Tero Marttila <terom@fixme.fi> parents: diff changeset	76	error:
31 7804cd7b5cd5 write+setattr Tero Marttila <terom@fixme.fi> parents: 30 diff changeset	77	return err;
28 e944453ca924 split off dbfs components into a separate dir, improve dirop docs, error handling, etc Tero Marttila <terom@fixme.fi> parents: diff changeset	78	}
e944453ca924 split off dbfs components into a separate dir, improve dirop docs, error handling, etc Tero Marttila <terom@fixme.fi> parents: diff changeset	79
e944453ca924 split off dbfs components into a separate dir, improve dirop docs, error handling, etc Tero Marttila <terom@fixme.fi> parents: diff changeset	80
e944453ca924 split off dbfs components into a separate dir, improve dirop docs, error handling, etc Tero Marttila <terom@fixme.fi> parents: diff changeset	81

author	Tero Marttila <terom@fixme.fi>
	Fri, 17 Oct 2008 02:04:03 +0300
changeset 31	7804cd7b5cd5
parent 30	d8fabd347a8e
child 32	90e14e0df133
permissions	-rw-r--r--