d284b82b3e
This doesn't have much effect on the final build, because we link libbasic.a
into libsystemd-shared.so, so in the end, all the object built from basic/
end up in libsystemd-shared. And when the static library is linked into binaries,
any objects that are included in it but are not used are trimmed. Hence, the
size of output artifacts doesn't change:
$ du -sb /var/tmp/inst*
54181861 /var/tmp/inst1 (old)
54207441 /var/tmp/inst1s (old split-usr)
54182477 /var/tmp/inst2 (new)
54208041 /var/tmp/inst2s (new split-usr)
(The negligible change in size is because libsystemd-shared.so is bigger
by a few hundred bytes. I guess it's because symbols are named differently
or something like that.)
The effect is on the build process, in particular partial builds. This change
effectively moves the requirements on some build steps toward the leaves of the
dependency tree. Two effects:
- when building items that do not depend on libsystemd-shared, we
build less stuff for libbasic.a (which wouldn't be used anyway,
so it's a net win).
- when building items that do depend on libshared, we reduce libbasic.a as a
synchronization point, possibly allowing better parallelism.
Method:
1. copy list of .h files from src/basic/meson.build to /tmp/basic
2. $ for i in $(grep '.h$' /tmp/basic); do echo $i; git --no-pager grep "include \"$i\"" src/basic/ 'src/lib*' 'src/nss-*' 'src/journal/sd-journal.c' |grep -v "${i%.h}.c";echo ;done | less
63 lines
2.2 KiB
C
63 lines
2.2 KiB
C
/* SPDX-License-Identifier: LGPL-2.1+ */
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#pragma once
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#include <stdbool.h>
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#include <stdio.h>
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#include <sys/types.h>
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#include "macro.h"
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typedef enum TableDataType {
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TABLE_EMPTY,
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TABLE_STRING,
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TABLE_BOOLEAN,
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TABLE_TIMESTAMP,
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TABLE_TIMESPAN,
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TABLE_SIZE,
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TABLE_UINT32,
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_TABLE_DATA_TYPE_MAX,
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_TABLE_DATA_TYPE_INVALID = -1,
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} TableDataType;
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typedef struct Table Table;
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typedef struct TableCell TableCell;
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Table *table_new_internal(const char *first_header, ...) _sentinel_;
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#define table_new(...) table_new_internal(__VA_ARGS__, NULL)
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Table *table_new_raw(size_t n_columns);
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Table *table_unref(Table *t);
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DEFINE_TRIVIAL_CLEANUP_FUNC(Table*, table_unref);
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int table_add_cell_full(Table *t, TableCell **ret_cell, TableDataType type, const void *data, size_t minimum_width, size_t maximum_width, unsigned weight, unsigned align_percent, unsigned ellipsize_percent);
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static inline int table_add_cell(Table *t, TableCell **ret_cell, TableDataType type, const void *data) {
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return table_add_cell_full(t, ret_cell, type, data, (size_t) -1, (size_t) -1, (unsigned) -1, (unsigned) -1, (unsigned) -1);
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}
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int table_dup_cell(Table *t, TableCell *cell);
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int table_set_minimum_width(Table *t, TableCell *cell, size_t minimum_width);
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int table_set_maximum_width(Table *t, TableCell *cell, size_t maximum_width);
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int table_set_weight(Table *t, TableCell *cell, unsigned weight);
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int table_set_align_percent(Table *t, TableCell *cell, unsigned percent);
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int table_set_ellipsize_percent(Table *t, TableCell *cell, unsigned percent);
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int table_set_color(Table *t, TableCell *cell, const char *color);
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int table_add_many_internal(Table *t, TableDataType first_type, ...);
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#define table_add_many(t, ...) table_add_many_internal(t, __VA_ARGS__, _TABLE_DATA_TYPE_MAX)
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void table_set_header(Table *table, bool b);
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void table_set_width(Table *t, size_t width);
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int table_set_display(Table *t, size_t first_column, ...);
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int table_set_sort(Table *t, size_t first_column, ...);
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int table_print(Table *t, FILE *f);
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int table_format(Table *t, char **ret);
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static inline TableCell* TABLE_HEADER_CELL(size_t i) {
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return SIZE_TO_PTR(i + 1);
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}
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size_t table_get_rows(Table *t);
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size_t table_get_columns(Table *t);
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