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49 lines
2.1 KiB
C
49 lines
2.1 KiB
C
//---------------------------------------------------------------------------//
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// ==>/[_]\ fxlink: A community communication tool for CASIO calculators. //
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// |:::| Made by Lephe' as part of the fxSDK. //
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// \___/ License: MIT <https://opensource.org/licenses/MIT> //
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//---------------------------------------------------------------------------//
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// fxlink.logging: Logging interface and log redirection
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//
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// This header provides basic logging utilities. You've seen these a thousand
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// times over. The only features are supporting colors from <fxlink/defs.h>,
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// redirecting libusb logs to this interface automatically, and redirecting
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// this interface to either the terminal or the ncurses TUI.
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//---
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#pragma once
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#include <fxlink/defs.h>
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#include <libusb.h>
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#include <stdio.h>
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/* Type of the log handling function out of this interface */
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typedef void fxlink_log_handler_t(int display_fmt, char const *str);
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/* Default handler; prints to stderr with ANSI escapes. */
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fxlink_log_handler_t fxlink_log_stderr;
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/* Set the logging function. Default is fxlink_log_stderr. */
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void fxlink_log_set_handler(fxlink_log_handler_t *handler);
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/* Redirect libusb log to this module's log hander. */
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void fxlink_log_grab_libusb_logs(void);
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/* Log a message. All of the logging functions accept a printf()-style format
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with corresponding arguments, and return 1. */
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int log_(char const *fmt, ...);
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/* Log a message with a certain display format (color/bold/italic). */
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int flog(int display_fmt, char const *fmt, ...);
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/* Like log(), but adds a red "error:" in front. */
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int elog(char const *fmt, ...);
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/* Like log(), but adds a yellow "warning:" in front. */
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int wlog(char const *fmt, ...);
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/* Like log(), but for headers (with current time in gray in square brackets,
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and provided text in yellow followed by ":"). */
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int hlog(char const *fmt, ...);
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/* Warning that includes a libusb error message. */
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#define wlog_libusb(RC, FMT, ...) \
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wlog(FMT ": %s\n", ##__VA_ARGS__, libusb_strerror(RC))
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/* Error that includes a libusb error message. */
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#define elog_libusb(RC, FMT, ...) \
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elog(FMT ": %s\n", ##__VA_ARGS__, libusb_strerror(RC))
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