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i3bar: Allow child to specify signals to use

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We now wait for the child process to send the first line before stopping
it to use the signal which might be specified in the i3bar protocol
header
Since clients might use the same signal for both stop and cont, we also
save the stopped state of the child to avoid stopping it while hidden!
This commit is contained in:
Quentin Glidic
2012-08-20 22:20:37 +02:00
committed by Michael Stapelberg
parent 1e114d7ab5
commit 8210c6be79
4 changed files with 47 additions and 21 deletions
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15
i3bar/include/parse_json_header.h
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@ -13,15 +13,12 @@
#include <stdint.h>
/*
* Determines the JSON i3bar protocol version from the given buffer. In case
* the buffer does not contain valid JSON, or no version field is found, this
* function returns -1. The amount of bytes consumed by parsing the header is
* returned in *consumed (if non-NULL).
*
* The return type is an int32_t to avoid machines with different sizes of
* 'int' to allow different values here. It’s highly unlikely we ever exceed
* even an int8_t, but still…
/**
* Parse the JSON protocol header to determine protocol version and features.
* In case the buffer does not contain a valid header (invalid JSON, or no
* version field found), the 'correct' field of the returned header is set to
* false. The amount of bytes consumed by parsing the header is returned in
* *consumed (if non-NULL).
*
*/
void parse_json_header(i3bar_child *child, const unsigned char *buffer, int length, unsigned int *consumed);