a3f37e3c9e
This is a rather long commit, because it refactors lots of the event code from pointer to value semantics: pointers to entries in an std::vector<> are not stable, so better use indexes. To step through the event-list at diven time stamps, add *_loop classes, which encapsulate state that had to be manually handled before by the caller. I'm not happy about the interface, but it tries to mirror the one we had before. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
94 lines
2.3 KiB
C++
94 lines
2.3 KiB
C++
// SPDX-License-Identifier: GPL-2.0
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#ifndef EVENT_H
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#define EVENT_H
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#include "divemode.h"
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#include "gas.h"
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#include "units.h"
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#include <string>
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#include <libdivecomputer/parser.h>
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struct divecomputer;
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enum event_severity {
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EVENT_SEVERITY_NONE = 0,
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EVENT_SEVERITY_INFO,
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EVENT_SEVERITY_WARN,
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EVENT_SEVERITY_ALARM
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};
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/*
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* Events are currently based straight on what libdivecomputer gives us.
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* We need to wrap these into our own events at some point to remove some of the limitations.
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*/
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struct event {
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duration_t time;
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int type;
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/* This is the annoying libdivecomputer format. */
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int flags, value;
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/* .. and this is our "extended" data for some event types */
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union {
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enum divemode_t divemode; // for divemode change events
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/*
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* NOTE! The index may be -1, which means "unknown". In that
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* case, the get_cylinder_index() function will give the best
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* match with the cylinders in the dive based on gasmix.
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*/
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struct { // for gas switch events
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int index;
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struct gasmix mix;
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} gas;
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};
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bool hidden;
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std::string name;
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event();
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event(unsigned int time, int type, int flags, int value, const std::string &name);
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~event();
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bool operator==(const event &b2) const;
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};
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class event_loop
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{
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std::string name;
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size_t idx;
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public:
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event_loop(const char *name);
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struct event *next(struct divecomputer &dc); // nullptr -> end
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const struct event *next(const struct divecomputer &dc); // nullptr -> end
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};
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/* Get gasmixes at increasing timestamps. */
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class gasmix_loop {
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const struct dive &dive;
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const struct divecomputer &dc;
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struct gasmix last;
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event_loop loop;
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const struct event *ev;
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public:
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gasmix_loop(const struct dive &dive, const struct divecomputer &dc);
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gasmix next(int time);
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};
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/* Get divemodes at increasing timestamps. */
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class divemode_loop {
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const struct divecomputer &dc;
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divemode_t last;
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event_loop loop;
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const struct event *ev;
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public:
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divemode_loop(const struct divecomputer &dc);
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divemode_t next(int time);
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};
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extern bool event_is_gaschange(const struct event &ev);
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extern bool event_is_divemodechange(const struct event &ev);
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extern enum event_severity get_event_severity(const struct event &ev);
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extern const struct event *get_first_event(const struct divecomputer &dc, const std::string &name);
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extern struct event *get_first_event(struct divecomputer &dc, const std::string &name);
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#endif
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