Previously a value of 0 was used for the RSSI to signal that this value is not
present in `gnrc_netif_hdr_t`. However, an RSSI of 0 dBm is legal and even very
plausible data.
This commit defines `GNRC_NETIF_HDR_NO_RSSI` as `INT16_MIN`, which is below the
noise floor in the vacuum of outer space and hence impossible to receive.
For consistency, also GNRC_NETIF_HDR_NO_LQI is defined.
Ctrl-D was not caught in a special case so it was interpreted as
a standard character. Handle it now the same way like EOF and
terminate the shell instance.
Replace direct accesses to sched_active_thread and sched_active_pid with
the helper functions thread_getpid() and thread_get_active(). This serves
two purposes:
1. It makes accidental writes to those variable from outside core less likely.
2. Casting off the volatile qualifier is now well contained to those two
functions
In most places, picolibc and newlib are the same, so use
the existing newlib code when compiling with picolibc.
Signed-off-by: Keith Packard <keithp@keithp.com>
Introduce optional user shell_post_readline_hook, shell_pre_command_hook, shell_post_command_hook.
Enable with USEMODULE=shell_hooks.
Calls user implemented *_hook functions if defined.
If implementation does not exist, nothing happens.
The intent is to make profiling of the shell command timings easier.
Test provided in tests/shell with USEMODULE=shell_hooks.
Originally, the options and flags in the `netif` shell output were
separated by two spaces. For later added flags this is not the case,
making the parsing of those flags and options hard to impossible.
This change adds those missing spaces + comments so it might not happen
again in the future.
The private parts need USB definitions (and are thus preferably used
from USB_H_USER_IS_RIOT_INTERNAL compilation units). Functions like
usb_board_reset_in_bootloader do not depend on USB headers for their
definitions and are fair game throughout the application even for
generic RIOT USB devices.
The code for traversing arrays of shell commands (used to print help messages
and to search for commmand handlers) was needlessly complex.
Co-authored-by: Juan Carrano <j.carrano@fu-berlin.de>
Factor out common code for quoted and unquoted tokens. This makes the code
slighly less clear, but it also eliminates repetition (which may improve
clarity).
Co-authored-by: Juan Carrano <j.carrano@fu-berlin.de>
